2009G37

iTrader: (1)

Also, if you're driving your car every few days, I assume that gets rid of whatever crap has built up at the bottom of the tank?

BradManUWF

If there's water at the bottom, depending on how much there is it could hydrolock your engine. If it's just a little water that is mixed in with the fuel, it will just run like ****. If you're driving the car, the vapors that are created from being "sloshed" around will keep the air/moisture out. You only need to worry about condensation if the car is going to just sit for more than a month or so, and not be topped off. You only need to worry about a full tank of gas going bad if it's going to sit for 3-4 months or more.

If you're driving it every few days, it will be fine without having to do anything extra.

These fuel/water problems only happen when it just sits without being used for extended periods of time.

Example: I bought a used motorcycle in Aug. The previous owner had topped the tank off sometime in May and then would only ride it down the street and back a couple times a month. I never thought to look in the tank before buying, but I def will from now on. There was about a 1/4 tank left in it but where the gas wasn't touching in the tank was covered in surface rust and the gas had gone bad causing it to run like crap when at WOT. It didn't even smell like gas anymore. So because of the low fuel level and not really being ridden, the metal gas tank got air/moisture inside and rusted the exposed metal along with causing the gas to go bad.

2009G37

iTrader: (1)

Thx a lot for the info. I'm glad that I haven't done anything bad to my car. What's your take on the whole "too little gas in the tank prevents the fuel pump from cooling well" bit that I keep reading about? I've been told that you should always keep the tank above 1/4 full at all times for this purpose.

BradManUWF

If that was something to worry about, the car designers would make it impossible to go under a 1/4 tank. I don't think it would heat up enough either way.