Autopia.org - View Single Post

Aurora40 · 01-05-08, 07:40

I'm not quite sure I understand how air gets into a gas tank as the amount of gasoline goes down. I'd think the only time it gets in there is when you fill it? As the gas level goes down, fuel will vaporize to fill the void. I don't think rust is a problem anymore from low levels either, as most tanks have plastic liners.

I'd think the benefit of less weight is fairly trivial. We are talking maybe 50 lbs here, unless you are going to keep the tank at an 1/8 or less or something. Going to the gas station twice as often would seem to me like a pretty big negative for this scheme, though.

01-05-08, 07:40	#46 (permalink)
Aurora40 Got secondaries? Aurora40 is offline Join Date: Jul 2002 Location: The Old Dominion Posts: 2,312	Re: Gas: Full up or half a tank??? I'm not quite sure I understand how air gets into a gas tank as the amount of gasoline goes down. I'd think the only time it gets in there is when you fill it? As the gas level goes down, fuel will vaporize to fill the void. I don't think rust is a problem anymore from low levels either, as most tanks have plastic liners. I'd think the benefit of less weight is fairly trivial. We are talking maybe 50 lbs here, unless you are going to keep the tank at an 1/8 or less or something. Going to the gas station twice as often would seem to me like a pretty big negative for this scheme, though.