2000maro
05-12-2012, 05:49 PM
To start this off I am not trying to get 1000 k off a tank I no its a 5.7 but I got freinds who get way better gas mileage this is the situation , my cars gets 250 kilometers a tank using shell v power I drive mostly city but I usually only drive it at night cause there is less traffic I got a a4 ls1 , once in a while I get a engine code that is emissions control , is this normal gas mileage could it be a sensor oh and it also back fires hard when I chomp on her thanks for any help !