Quote:
Originally Posted by ktaylor
Yeah probably.
If I wait until the tank is closer to empty my FE will go up right? I realized I've been filling with 20L or so still in the tank (1/3 full) because my fuel gauge craps out at around 30L and either always says the tank is full or says it's empty.
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Running an emptier tank will save a bit on weight, but it will allow the fuel pump to get warmer than with a fuller tank, which can shorten its life. There's also the argument that giving the gas too much space to evaporate into means more fuel is lost to evaporation. Granted, the charcoal canister is supposed to absorb all the fumes and release them during driving, but I suspect you'll get no extra economy from the fumes released by the charcoal canister.
And the "except at the pumps" comment referred to a bit less fuel needed to refuel.