Capless Gas Tanks Pros and Cons

What Capless Gas Tanks Do For You


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[Editorís Note: This article has been updated since its original posting date.]

There is a good chance that when you get your next used car and open the gas tank flap all set to unscrew the gas cap, there wonít be one there. There is a small trap door, that you canít push in with your finger, yet when you stick the gas nozzle from the pump in, it easily inserts. Welcome to capless gas tanks.
Here are the pros and cons:

Capless Gas Tank Pros

  • Less chance for gas smell on your hands. You simply flip open the fuel door and stick the pump nozzle in. Not having a twist-on/off cap is one less contact with a gasoline-vapor odor source.
  • No worries about paint scratching from the dangling gas cap, which manages never, ever to fit properly into whatever holder or restraint the automaker provides to keep it out of the way during fueling.
  • No embarrassing cap-dangle thatís a result of driving off in a hurry and forgetting to put the cap back on.
  • Minimal chance of bad guys siphoning out your $4 gas. Capless systems use various mechanisms in the fuel-filler neck that make it nearly impossible to stuff in a garden hose and drain a victimís tank.
  • No more discomfort for people with arthritis or other impairments that make the act of twisting a cap awkward or painful.



If you havenít seen a capless fuel filler, watch this short video:
There are drawbacks, however.

Capless Gas Tank Cons

  • While limiting the fuel smell that gets on your hands, capless systems can increase the gas smell coming from the vehicle. If you try to fill the tank even a little bit more after the gas station pump clicks off, youíre likely to get headache-level fuel fumes pouring from the area of the filler neck until you drive awhile. Donít even consider over-filling the tank and driving right home to park in your garage.
  • The same anti-siphon feature means you have to carry the (automaker-provided) special funnel for times you run dry and need to refuel from a gas can instead of a pump. Afterward, the funnel smells like gas and you can smell it even in the trunk.
  • What if you need to siphon gas for an emergency? Like, say, you live in Virginia where you might get the occasional 54-inch snow and canít get to the gas station to buy fuel for your emergency home generator and really, truly wish you could drain some gas from your car or truck tank to use in the generator to keep the power on? Or, perhaps, you might like to help a stranded driver with a gallon or two but canít, even if you happen to have a hose.

For me, I like not having to deal with the twist off gas cap, it speeds things up at the pump and I donít have to worry about not getting it on tight, causing the check engine light to illuminate.

Photo Credit: Ford
Rafael
I have problems with my Ford Explorer 2010, easyfuel (capless) was damaged, can I buy a replacement and what is the part number. Thank you for your help
Amy P.
Hi Rafael!

We don't have specific part information but I suggest you visit a Ford Dealer Service Department and they can help you. Not sure where you are located but our Car Pro Certified Ford Dealers have exemplary service departments.

Best,
Amy
patricia
where is the automaker provided funnel located in a 2018 ford escape
Amy P.
Hi Patricia! Check near the spare tire in the trunk, where it is typically located. Otherwise you can check your owner's manual and it should tell you there. Thanks for emailing!
PHILIP
I DO NOT want a capless fuel filler on any vehicle I own. Unless that seal remains 100% sealed for life, which is highly unlikely, then you can have water make its way into the fuel supply which is really bad. I'd say that feature would be a deal breaker for me.
Monica
You do well by not wanting it. I have it on my car and it is a headache because now I have a EVAP system leak (very small leak) and it is coming from that. every time I fill my tank the check engine light comes up so I literately have to fill my tank only up to 3/4 otherwise the light comes up and the first half of the tank runs out very very fast. I HATE IT!
Tom O
We have a 2014 for edge with the capless tank. We experience an engine light intermitantly . The only way to turn it off is take it to the dealer. we have been told that the engine light is a result of capless tank.
Your Thoughts?
Amy P.
Tom, I've never heard of this happening due to the capless filler, but I can't say the dealer is wrong. If it continues, I would consider getting it changed for a new filler neck.


Jerry Reynolds
Rick
Eric, you are not the only one on the other side. One is more likely to hear negatives than positives. It perhaps only saves 10 seconds or so removing and replacing the cap, but I like the convenience. Now if these whiz-bang auto engineers would come up with a replacement for the truly antiquated and inconvenient valve stems on tires, I'd been even more pleased.
John B.
First of all, thank you all for your messages and questions. I too was curious whether gas could be syphoned from my new '18 F150 and the information printed in this forum was much appreciated. I went on-line and American Truck makes a "lockable" gas door for the 2018-2019 F150's. They posted a video on how to install it. I'm supposed to receive mine today so I'll post a report once I put it on. We live on a floating home community so our cars/trucks are parked in a lot above the moorage. We've been experiencing gas theft recently so that's the reason I went looking for a lockable cap or door. I too think Ford is stupid for not putting a locking gas doors on their trucks and cars if just for a piece of mind for their customers.
Jessica
Man I agree.. just got a Fusion, i was looking for the fuel tank door button only to discover there is none. You just push it open. Dont like that one bit, so now I'm looking to get a kocking one as well.
Eric B.
I will be the only one who is on the other side. I love capless tanks! It is so much easier and cleaner. I do wish the cap locked when the car was locked, but I have never had gas siphoned in my life and I don't see that happening in the near future. As far as dust, water, etc getting into the tank don't you think the dealer gave that some thought on the millions of vehicles they would have to warranty if this was an issue? Enjoy the convieninece and stop worrying about extremely unlikely situations.
David P.
I hate cap less gas tanks. A Stupid Idea by Ford, which everyone then adopts. Dust and moisture look like they can get in, thus bringing an early death to the fuel pump. Just to save a buck! A plastic cap doesn?t really scratch today?s Clear Coat. I know someone who wants to sabotage your fuel will do it.
Lenore T.
Need to know: Went to station, filled on gas, went to car wash, came home right after and found the cover on the capless tank was open. Considering the pressure used to wash in car washes, can the water and solutions be forced into the tank. The flap in the opening can not be opened by any device other than the funnel provided or the gas pump nozzle. Called local car dealership and guy said it shouldn't be a problem but watch for engine light and be listening for noises that are not normal or are loud plus abnormal overall running. Really don't want to ruin a 2016 Taurus with less than 1800 miles on it. Thank you for any info you can give.
Car P.
IT is very doubtful water could have gotten in the tank. The pressure from the car wash is not enough to force the flap open. I don?t think you have anything to worry about.


Jerry Reynolds, President
Car Pro Radio Network
Eugene G.
There appeared to be a lockable fuel plug available from Ford for Mustangs up to and including 2014 model year when they then went to a S550 platform. I cannot seem to find a lockable plug for the 2015 on through 2018 models. I have no fear of fuel theft but there are always people that are weird and mean enough to want to add something harmful to a persons fuel. I am just overly cautious but am not a great believer in the goodness of the human soul.
vicki
thank you....i am right there with you...i have just purchased a 2012 for fusion and found out its cap less..i was surprised when i found out it was...first thought...anyone could put something in the gas tank if they truly wanted to be mean....and on that note...last month my next door neighbor slashed my daughters tire...so yes there are those people out there that would be this vindictive...but i did find a locking gas plug that they do sell, im gonna try it and give me a little more piece of mind...
Phyllis .
I am so glad to see I am not the only one with the engine light coming on and even the gas door light. Happens after filling the tank and we have pulled to codes and yep same problem and the Ford dealer here says I have to bring it in so they can diagnosis the problem even though we already know not to mention one of the part might not be able to be replaced.
Hubby looked it up and I don't recall which but one is metal an one is plastic and depending on which on it is will depend on if it can be replaced,
After a few days both lights will go off but when I put gas in the tank again on they come sometime during the day and they are not effecting the way the Escape runs in any way.
But dang the cost to have them check it out then the cost for the parts ad yes it is making me look at other options for an SUV that comes with a gas cap because their system is faulty and they are not willing to help the consumer out regardless of the age of the SUV and that includes the "Family owned" dealership that never returned my calls when I tried to set up the free oil change for buying a new car 8 yrs ago.
Good thing I can change my own oil, rotate tires and other things and have a hubby that used to be a mechanic.
Dan D.
We have a 2015 Lincoln MKs and purchased a locking gas cap that works with the Ford cap-less system. I had the same thought about someone dumping other liquids in my tank with or without the special funnel. Also filling up on a trip and parking in a hotel parking lot at night is an easy target.
RALPH .
I'm curious if you went to purchase a car, new, with this capless gas tank can you have the dealer convert to a capped tank or is this just unfeasible for the dealer or anybody else to attempt to modify???
Ashley .
I have a 2013 Ford F- 150 that has the Easy Fuel cap. I have had my gas cyphoned twice now! Does anyone have a suggestion for a locking gas cap?? I can be paranoid of leaving my truck unattended.
barry .
i just purchased a 2017 gmc sierra with the capless fuel system,when I wash the truck water sits in the filler hole,so where does it go, GM why did you follow these other makers , not good
Paul .
Bought a used 2012 Ford Fusion...has a gas capless system (never owned one before). All seems good. However, I live in an Ohio county that requires "e-check" for emissions verification. One of the tests is that they verify the gas cap is performing/sealing properly. I can't find anything on the e-check website for how they handle when a manufacturer makes a car without a gas cap. Anyone with info, please let me know. THANKS!
Car P.
Paul, I am driving a ton of cars these days with the capless system, so I would bet they have adapted their standards. You get the same pressure readings with the capless system, so it should be fine! Thanks for listening.
Steven .
It's bad enough that the government forced the design of portable gas tank nozzles to make them more difficult to use and spill more gasoline as a result, but combined with the capless cap fuel spills are even bigger.

I have a Ford Fusion rental car with a capless cap and tried to fill the tank from a 5 gallon plastic tank with a nozzle that has to be pressed to the edge of a filler neck in order to allow fuel to pour. The old portable tank design was very ease to use when adding fuel to a vehicle. Now, the combined use of a funnel, the capless crap, and a government dictated portable fuel tank results in more fuel on the ground than in the tank.

We need less government dictating product designs.
Mark W.
2017 Silverado design flaw with capless Fuel neck allows water and debris to enter Fuel system... let them know and let's fix this issue now..... before your warranty expires leaving you the expense of plugged fuel filters and damaged fuel systems
Jerry Reynolds
I will pass that on, thanks for letting me know! - Jerry Reynolds
Mark W.
It amazes me the ridiculous options and accessories the manufactures and engineers build into our vehicles, And the common sense they all seem to lack,Starting off with these capless fuel necks .....idiots ....I just wasted $35,000 on a Chevy Silverado that has a capless fuel neck, which retains dust,water,and any road contaminants on the cover which is recessed about a quarter inch within the fuel neck assembly ,Which will flow directly into the tank at the time of fueling up and over time will build up contaminating your fuel, plugging fuel filters and costly damage to the fuel system ......so we better start [expletive]ing now so they fix their mistake .....I expect this crap from Ford.... but GM you guys should know better!!!!
Michelle E.
OMG you I have never been so right. I never expect this from GM. My lease is up in 30 days and I could not believe this nonsense with this no cap on the gas tank who's in charge who's making these decisions for us I'm at a loss. Lexus doors lock when the car door locks the gas door locks. I guess I'll be leaving GM after all these years not to mention I still have minutes on my OnStar SMH
Jerry R.
Mark, these have been around for a lot of years, and I have never heard a complaint. People, including me, seem to really like the system, it's a time saver for sure. I will pass your thoughts on to GM. - Jerry Reynolds
George S.
We went away on vacation for 12 days and our car sat in the garage. When we returned it had gone from a half of tank to less than 30 miles left. Can it evaporate that quickly with the capless system???
Jerry Reynolds
No, I suspect an issue with the onboard fuel calculator, or perhaps a leak of some kind, but it is not evaporation. I would get it to a dealership to make sure everything is OK. Could just be a fluke, one time thing. - Jerry Reynolds
EAC .
Finally found a funnel for 2014 Expedition with the "wonderful" cap less system ...

It is so short, it is difficult to use when putting in dry gas ... is there anyone out there who makes a longer one, possible with a flexible neck that will go through both sets of tabs?

Thank you
Jerry Reynolds
Not to my knowledge, I wish I could help you.
Dana P.
I have a new pacifica minivan. Is there anybody that makes a cover for the cap less system to keep dust out? I live on a gravel road and inside the gas door gets a very thick coating of dust & dirt that will go down in the tank when you push the nozzle in.
Jerry .
I don?t know of any such device, and the fuel door when the nozzle goes in is spring loaded and makes a good deal. You could use Saran Wrap and a rubber band if you are concerned. I haven?t heard of this being a problem, however, and many vehicles use these.

Thanks for listening to the show!

Jerry Reynolds, President
Car Pro Radio Network
Obie .
New car with capless tank. 200 miles in, 'Emissions System Trouble' light comes in. Apparently the seal is not perfect so fumes are escaping and it needs to be replaced. I applaud innovation but I get very annoyed having to bring the car in for service for something like this. Of course the part is back-ordered... It seems these things are failure prone. A better design would be to provide you with a cap so you decide what to do or make it a dealer installed option - and I would have skipped.
Ken .
I just recently purchased a 2016 Ford F-150 with the Easy Fuel System. I am very concerned about not having a locking gas cap or a locking fuel compartment door. My concerns arise from someone previously putting sugar into my gas tank and thus ruining my engine. These vehicles cost too much money to take a chance on something like that happening, especially if your employment would make your vehicle more susceptible to vandalism. I have done research and there does not appear to be any locking gas caps or plugs for the 2016 F-150. I have tried to get an answer from Ford, but the representative did not answer my question. She rather gave me an explanation of how the capless system works. What I really would like to know is this. Does the capless system prevent someone from putting a sugar based liquid into the filler neck that would subsequently enter your gas tank the next time you put gas into your vehicle? I would appreciate a straight answer that I could understand. Thank you in advance for your assistance.
Bill
I call BS on this the sugar ruining your engine. Sugar will not dissolve in gas. It will just collect at the bottom of the gas tank. It might clog the fuel filter, but It is very heavy and most likely will not get into the filter.

Remember your chemistry. Sugar is polar, gas is non-polar they will not mix. It is just like oil and water.

I'm a mechanic and I also taught physics and chemistry in Jr Colleges


Jerry .
To my knowledge, there is no way for someone to do that and I have never heard of a single case of this happening. Ford is not the the only company using them, I see them on many of the cars I review. Honestly, I do not think this is a concern at all.


Jerry Reynolds, President
Car Pro Radio Network
Concerned R.
Not great for rented cars either... If the tank is nearly full and you just have to get it back to the mark... it won't let you fuel it up!
Donna H.
I just brought a locked gas cap from advanced auto...for the same reason. Kids in the area keep opening my gas tank door and it is capless. I think one day they are going to put something in it. I take the cap off before i drive. I am not sure if it will mess up my engine driving with a cap.
Carol C.
Where did you buy that locking gas cap? I need one for my 2015 Cadillac CTS......vandalism is my concern.
Chris .
This is not Ford fault. It's the epa and carb requiring manufactures to reduce fuel vapor when fueling because of "globull warming". To many people can't figure out how to put the cap back, so now we are having to live with this. I'm a Ford tech, many check engine lights caused by loose filler caps over the years. Capless is to save you from yourself. And Ford DOES offer a locking cap for the system. And it is very easy to open the latch, just activate the two tabs on the side and push the door open, your not going to be stranded because you can't get it open. All that being said, yes it still isn't a perfect system because it doesn't always seal correctly especially after a few years. Hopefully it gets better some day.
Marty M.
my 2014 jeep no cap fill broke I have to buy the whole assembly for $349 plus $180 labor. they don't sell just the exterior piece?
Shelley G.
I bought my 2012 Ford Mustang used about a year ago. I am happy with the capless gas tank and have had zero problems with it mechanically - and no issues with anyone trying to steal my gas (and i live in a moderate crime/vandalism area. BUT - there is one thing im finding difficult. We have harsh temps in the winter (like right now is only 11 degrees, and windchill is close to neg 5 degrees) and i want to add some HEET to my tank. The small longnecked funnel isnt opening the tamper-resistant slot so i can't add it to my fuel. :(
Jerry .
Shelley, good to hear from you. If the funnel that came with the car is not working, taking it to a Ford dealer and ask them to change it out. If you go back to the place you bought it, they should just give you another one.

Hope that works out for you!

Jerry Reynolds, President
Car Pro Radio Network
Mike .
Crazy - so I go to put some gas line antifreeze in my wife's 2013 Escape - and it runs all over the place - for some reason the spout did not open the flap - to allow the liquid to enter the tank - NICE.....NOT!!!!!!!
So either I have a problem with the mechanism - or Ford needs to check their design for this to work - it's going to be -5 this week - and even through the vehicle sits in a heated garage at night - it's outside during the day.....anyone have any thoughts?????
Jerry .
There is generally a small funnel next to or under the spare for just these situations. It is the same size as a gas pump nozzle. Hope this helps.

Jerry Reynolds, President
Car Pro Radio Network
Leslie .
Is it simple for someone to poor sugar in your capless tank because on the Ford f150 Fx4 the gas lid doesn't lock in any way at all
Jerry .
No. You cannot insert anything except a gas pump in there. No worries at all!

Jerry Reynolds, President
Car Pro Radio Network
chris .
I purchased "plug" for my ford capless gas tank. At the dealership. Capless no more.
Walter M.
There is always a chance that some mentally challenged person will tamper
With your fuel system and, as someone said earlier, put foreign objects in
Your tank such as sand, sugar, etc., etc. and goodby engine. Capless is
Okay, I suppose, but come on, let me lock my fuel access door. Is there
Any aftermarkets out there to circumvent this ridiculous idea?
Sarah D.
I have a 2014 Ford Fiesta ST and here recently every time we get gas it shoots gas around the nozzle. Then of course it runs down the white paint and makes a real mess. Or better yet, it shoots out and onto my work outfit. It's way out of control, and I am fed up!! Anyone else with this issue? Any suggestions? Is it a venting problem?
Donna H.
The other day while i was fueling up they same thing happened to me. I had to hold the nosel and the problem was fixed. The gas attendant said that happebs to many customers.
Charles S.
I have a 2014 Fiesta SE, and when mine fills up, the nozzle shuts off, and then gas sprays back out of the filler neck. I've had it at the dealership four times now, and they have replaced the whole assembly, and it still does it. They have since referred me to Ford Customer Care, and they have a claim working against it. We will see what they come up with.
Jerry .
That is not normal and something you should take to your dealer and have them look at it.


Jerry Reynolds, President
Car Pro Radio Network
esgillespy .
Someone tried to steal my gas. It didn't work, but they cut the hose and left an inch of it hanging out. My wife went to work, got half way there and needed gas. Now we have to figure a way to get it out, which I'm sure want be cheap, plus can't put gas in it.
Patti .
I have a 2011 Ford Escape Limited. I have never had an ounce of trouble with this vehicle. Last week, my engine light came on. I took it to my mechanic and he pulled up the code that it was registering. He wrote it down for me, and it's either P/44A or p144A. Evaporative Emission System purge vapor line restricted/blocked. He says it does not hurt the vehicle to drive it, but that light is causing my OCD to kick into overdrive.

Any suggestions?
Jerry .
I would recommend getting it into a Ford dealer for repairs. I think it could cause you some problems as time goes on. plus it won?t pass inspection this way. I doubt it will be an expensive repair at all. I?d get it fixed and be done with it.

Thanks for listening to the show.

Jerry Reynolds, President
Car Pro Radio Network
Jimmy .
2012 Mustang owner. I always find gas stain on the body of the car just underneath the gas cap area. It looks as if it's an overflow but I usually only round off to the nearest dollar or half dollar. Anyone have any answers why this happens? Car is white and the stain is unsightly. Don't want the paint discoloration.
CarGuy .
It?s caused by your topping off. And it will come off with a solvent. Don?t use compound as it?s completely unnecessary and will wear down the clear coat over time.
Jerry .
Jimmy, fumes will often cause this, I suspect your vent hose is crimped somewhere, that?s not uncommon. I wish I could tell you with 100% certainty and I hope you get to the bottom of it. A good compounds, followed by a hard wax should take the stain out.


Jerry Reynolds, President
Car Pro Radio Network
Kristin .
I have a 2012 Ford Mustang with the capless system on it. I have the codes 0455 and 0457 coming up which say I have a small leak and a large leak. The EPA website says that this should be covered by the Design and Defect warranty. I called Ford and they sat it is not. The woman who answered the phone said she had the list and it said the filler neck is covered but not the carbon canister or the purge valve which Fords diagnostics said needed to be replaced. When I got off the phone with her I looked of the list she was reading from and I did see the filler neck at the bottom where she said it was. 4 lines above that it said Evaporative Emission Control System. I googled that to see what was included in the system and lo and behold it said Charcoal Canister, purge valve, and filler neck. All of the things the dealership said I needed to replace. Also in me reading I found a site that said nothing really should ever go wrong with the canister as all it consists of is a canister with charcoal in it. I have spoken with others who have also had problems with this system. It is hugely expensive to fix. Not a fan.
Jenn .
Thank you for writing this. I knew Capless was a bad idea. I just want to see some proof. They would tell me that race cars uses them. But that only bases it on how long a race car is around. About a month or so
chris .
Fight it document it and find out if others are having same problem leave a paper trail .call the district manager. Don't take no for an answer.
Jon .
Hey Kristin, I'm having the EXACT same issue as you. I can't pass my smog test due to this. My engine light is on and it's due to the small evaporative leak and the culprit is the "easy fuel no cap" design. I have a 2009 Mazda Tribute which is under Ford and my mechanic and also the smog test guy said I needed to go to the dealership to get the neck replaced. I talked to the Mazda dealership and they said they highly doubt they will cover this even though it is a design flaw on THEIR part yet I'm having to pay for THEIR mistake. I was wondering where you got this "list" showing the filler neck and evaporative emission control. Also, how is all of this working out for you? Did they cover the charges or did you have to pay for everything?
Jerry .
Kristin, sorry to hear of the issue. I am sorry, I've had NO experience with this at all, I wish I could help. You might talk to a different Ford dealer, or go up the ladder at the Ford Hotline.



Jerry Reynolds, President
Car Pro Radio Network
Luis .
Bob T ... No one offers a locked gas capped anymore. That was back in 1950... Now there are locked gas doors. Like my Acura. This capless system won't allow you to Syphone gas without "the provided tool" the fuel door will also lock. Must have just read the title and commented. Wow.
Ernest M.
The doors do NOT lock. I think this is one of the most stupid ideas yet!!! My wife bought a 2019 Cherokee with this and we're ticked that we can't buy a lock cap. She even asked the salesman and he said that locking caps were made for it.
Miguel .
Locking gas caps became a thing during the Energy Crisises of 1973 when there were shortages of gas and high prices. News article from Green Bay, WI, 1973: " he energy crisis and rising gasoline prices have apparently resulted in a shortage of locking gasoline caps as area residents take the extra precaution to protect the fuel they have. Auto dealers and automotive suppliers report nearly a 100 per cent increase in sale! of the locking caps during the past six weeks. Demand has outstripped the supply and area suppliers just can't get enough. One automotive department manager said his manufacturer had a 16,000 backlog on orders three weeks ago, and "in the end, they'll probably have to be put on an allocated basis." One dealer said his manufacturers are having trouble obtaining nickel and zinc for the caps, pushing production far behind schedule. Many stores said they are getting about 25 calls per day from persons seeking the locking gas caps for all models of cars. One supplier received a call from a person requesting 25 each of caps for three models; another lady called in trying to buy a cap for her mother in Milwaukee where the caps are equally scarce. "If we could sell one a month before the gas shortage, it was almost time for a celebration," said a supplier. "Now we have 100 on order and none in stock. We could easily sell as many as we could get." The locking gas caps are similar to ordinary covers except that a key must be used to open them. Prices run from $1.98 to $4 for models before 1971 and from $3-$5.50 for late models. Non-vented caps for newer models allow the tank to build up pressure, forcing the gas through the system and preventing air pollution. One manager reported sales of siphoning equipment were running double the sales before the shortage. Another said his store carries siphoning apparatus only during spring for lawn mowers, "but if you've got a garden hose, you've got siphoning equipment." "People who can't get locking gas tanks because of the short supply may start looking for siphoning equipment," predicted an automotive supplier. "
Neal E.
There are actually locking gas caps for sale at all auto stores as well as most big chain stores. They are a pain in the butt in my opinion, but if you need one....you need one!!
Jonny .
I just got a Tesla P85+. It is now my only car. No more gas worries of any type. Much less this capless nonsense.
randall k.
what about the grand kids filling it full of dirt and water there should be a lock on the door at least
bob t.
How about vandalism to your gas tank with kids putting things into your tank....No cap that you can lock and most do not have locking gas doors on the autos.
BAD IDEA.
I do not want a capless auto.. Nor will buy an auto with this system.
Good thing we have other makers doing things right by provide locking gas doors and gas caps.
Cliff .
I agree. Capless means "No Sale". I live rural and deal with several miles of dusty gravel roads to and from the house to the local highway. The dirt factor makes this capless stuff about the most stupid thing that OEM's have come up with yet. I don't live in some metro area where people do mischief to fuel tanks or steal fuel. I live in an area where folks can get shot messing with another person's property. The closest town is 15 miles away and it can barely come up with 1000 people on a good day. Some of this nanny state nonsense is getting way out of hand.
sherry .
I had my gas stolen out of my new ford fusion. no locks the theives have figured out what to do. They took my whole tank. Great. I am trading my car in. BOO!
Derek E.
I don't ever top off gas ever! "rounding up:" to the next whole dollar is just give the oil companies MORE MONEY! just fill it, hear it click and remove the pump. Just think about how much money can add up when people round, and times that my millions. Don't give them anymore money that you need to!
Bill .
In years passed when going on a trip, I'd top-off the tank with more than just one squeeze. Today, however I tried to add STP gas treatment to my tank and WASTED a lot of it because the Red plastic spout wouldn't trip the gas-less cap system....Finally had to get the funnel that came with the Ford Truck and clean up the mess on my garage floor!!!!

Nowadays, I top-iff for another reason: Reward Points ;>) Some credit cards will give TRIPLE POINTS for dollars spent on gasoline purchases. I got to noticing on my bill that if I had spent just another few cents, I'd get triple points for a "full dollar" purchase. At the TRIPLE POINT ratio, a month of gas buying makes a significant positive point count when going to the next dollar....

Think about that next time you put it on a credit card that you payoff in full each month.... Bill
Tom .
Huh? Do you think the gas that you round up just spills on the ground and is just wasted? You are NOT "giving" the oil companies money when you round up. You are just buying more product that you are going to use. You're going to buy it anyway. In fact, the more you fill up your tank (without overfilling) the less gas you waste driving into and out of gas stations. Your post is sad commentary on our educational system. The scary thing is that you can drive and probably even vote.
Bob .
Derek:

Your point makes absolutely no sense at all. How in the world does rounding up give give the gas companies more money? You are going to use it anyway. Of course, you don't want to over-fill your tank but that's for technical reasons, not that the gas company will make more money. Tanks are designed to have some area for vapors and over-filling is a bad idea. But rounding up to the nearest dollar is fine. You seem to think that you won't be using the gas that you round up. Using your logic, you should not even fill your tank. But you need gas and you are going to use what you put in the tank. I think you need a good night's sleep so you can think clearly.