Fuel - to top off or not to top off?
3/14/13, 03:28 PM
#1
Cobra Member
Thread Starter
Fuel - to top off or not to top off?
I am new to Mustangs and have no experience with the new fuel filler on my Mustang other than having refueled it twice. My instruments said I had used 11.25 gallons at the last fillup, but it took less than 11.1 gallons before the nozzle shut off. Is it a problem if I trigger the nozzle again to top it off? In the cars I am familiar with I can hear the difference when it is close to overflowing. I ask this because on long road trips I want as much range as I can get.
3/14/13, 04:36 PM
#6
Cobra Member
Thread Starter
I just found a statement in the owner's manual that says allow no more than two automatic click-offs when refueling. I think that's my answer. The second click-off would likely have taken the amount pumped to very close to the 11.25 gallons I was supposed to have used.
3/14/13, 05:34 PM
#8
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on my first fill up, i squeezed through two auto shut offs and the 2nd time a bit of gas squirted out and ran all down the side of my car. since then i've always used the medium-to-slow flow and never ever go past the auto shut off. always fairly close to what's shown as gallons used, within .5 gallon i think.
3/15/13, 11:20 AM
#10
Mach 1 Member
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DO NOT TOP IT OFF.
How many of you remember the big rubber boots on gas pumps to collect gas vapors? In case you haven't noticed, those are disappearing. The reason they are disappearing is because cars are now required to have this vapor collection system built into the car itself. If you top off your tank you run the risk of flooding this vapor collection system which damages the system by flooding the charcoal canister with gasoline.
It's not a safety risk per say, but it could cause you to fail safety and emissions tests if you have them. Not to mention you would have to put up with the smell of raw gasoline constantly coming from the back of your car.
How many of you remember the big rubber boots on gas pumps to collect gas vapors? In case you haven't noticed, those are disappearing. The reason they are disappearing is because cars are now required to have this vapor collection system built into the car itself. If you top off your tank you run the risk of flooding this vapor collection system which damages the system by flooding the charcoal canister with gasoline.
It's not a safety risk per say, but it could cause you to fail safety and emissions tests if you have them. Not to mention you would have to put up with the smell of raw gasoline constantly coming from the back of your car.
3/15/13, 11:45 AM
#11
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Join Date: December 14, 2007
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DO NOT TOP IT OFF.
How many of you remember the big rubber boots on gas pumps to collect gas vapors? In case you haven't noticed, those are disappearing. The reason they are disappearing is because cars are now required to have this vapor collection system built into the car itself. If you top off your tank you run the risk of flooding this vapor collection system which damages the system by flooding the charcoal canister with gasoline.
It's not a safety risk per say, but it could cause you to fail safety and emissions tests if you have them. Not to mention you would have to put up with the smell of raw gasoline constantly coming from the back of your car.
How many of you remember the big rubber boots on gas pumps to collect gas vapors? In case you haven't noticed, those are disappearing. The reason they are disappearing is because cars are now required to have this vapor collection system built into the car itself. If you top off your tank you run the risk of flooding this vapor collection system which damages the system by flooding the charcoal canister with gasoline.
It's not a safety risk per say, but it could cause you to fail safety and emissions tests if you have them. Not to mention you would have to put up with the smell of raw gasoline constantly coming from the back of your car.
The overflow enters the vent tubes connected to the charcoal canister and ruins them.
3/15/13, 12:35 PM
#12
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Join Date: January 24, 2013
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DO NOT TOP IT OFF.
How many of you remember the big rubber boots on gas pumps to collect gas vapors? In case you haven't noticed, those are disappearing. The reason they are disappearing is because cars are now required to have this vapor collection system built into the car itself. If you top off your tank you run the risk of flooding this vapor collection system which damages the system by flooding the charcoal canister with gasoline.
It's not a safety risk per say, but it could cause you to fail safety and emissions tests if you have them. Not to mention you would have to put up with the smell of raw gasoline constantly coming from the back of your car.
How many of you remember the big rubber boots on gas pumps to collect gas vapors? In case you haven't noticed, those are disappearing. The reason they are disappearing is because cars are now required to have this vapor collection system built into the car itself. If you top off your tank you run the risk of flooding this vapor collection system which damages the system by flooding the charcoal canister with gasoline.
It's not a safety risk per say, but it could cause you to fail safety and emissions tests if you have them. Not to mention you would have to put up with the smell of raw gasoline constantly coming from the back of your car.
