Fuel Saving Tips
Some bad information around here... some great too! Overfilling your tank would, if anything, reduce your fuel economy as you are lugging more weight. Furthermore, evaporative emissions system will suffer and you will fill your charcoal canister with raw fuel causing a check engine lamp and potential drivability issues. This is a terrible suggestion that will not get you ANY better fuel economy AND cost you money! At least some bad suggestions will get you better fuel economy at the cost of more expensive wear and tear, this wont even do that! When the pump stops, hang it up! BTW, in Oregon, it is illegal to top off your tank.
posted by ALong85 on August 9, 2017
this tip works for 75% of voting Fuelly members.