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Fuels & Lubricants Discussion all about Fuels & Lubricants. synthetic oil, conventional oil, brands, change intervals, diesel grades, gelling and such debated items like that. Non TDI related postings will be moved or removed. This forum is NOT for the discussion of biodiesel and other alternative fuels.

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Old April 6th, 2017, 22:10   #8941
ATR
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Quote:
Originally Posted by ZippyNH View Post
One tip...
Overfilling a gas tank can get very $$$$ with modern cars. The charcoal vapor recovery canisters can get saturated and require a $$$ replacement. The extra space in the system is meant to add volume so when the gasoline expands or the car applies the vacuum to the tank system, liquid gasoline cannot get to the charcoal canisters. When overfilled, all bets are off.
Good point. I should have been clearer...

I'm aware of the charcoal canisters of modern gasoline powered cars/trucks. I make it a rule to never fill more the the second "click". After the fuel pump clicks the first time I wait 10 seconds then hit it one more time. Normally gets a me 1/3 gallon extra. I have never and will never fill to the brim on my gasser.

Little things I miss about my diesel...
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Old May 24th, 2017, 02:47   #8942
Michael M Perez
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Old June 24th, 2017, 11:03   #8943
New Mickey
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I've always over-filled my gasoline and diesel vehicles, and never had a problem. However, I never fill up at the end of a drive. The tank isn't "overfilled" long enough to be a problem.

Some can't really be over-filled. I have a 2010 Transit Connect van, and cannot squeeze in more than an extra pint or so after the pump clicks off. "Full" really is "full."

My 2007 Honda Accord, on the other hand, takes 2 1/2 GALLONS of extra fuel until it's literally brim full. And has been doing so at every fill up for 250,000 trouble-free miles. That's an extra 70+ miles of range from a tank. I go well over 100 miles before the needle drops to FULL.

It is theoretically possible to drown your carbon canister, but you really have to work at it. Over-fill on a hot day and then immediately park in the sun? That might cause a problem. Or spill diesel fuel on the ground, in the case of an over-filled TDI. But it's not going to be an issue if you start burning the fuel right away.

-mickey
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Old June 24th, 2017, 11:17   #8944
tadawson
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There is no canister or evap system on a diesel . . . diesel vapor pressure is too low to need it . . .
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