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·what grade oil do you use? 5w30, 10w40... etc? does oil grade effect gas millage? thanks
ps, talkin' about synthetic oil
ps, talkin' about synthetic oil
my last couple of tanks i averaged about 18mpg. i'd say 60% highway and 40% city driving. after i installed an apexi intake, my mpg got really bad at one point but i assume the ecu was adjusting itself to the higher intake flow. its back to normal now.money042 said:toysupra1 , how many miles per gallon are you getting? what kinda driving do you do? my milage seems to be dropping, i'm trying to figure out why. thanks for the input.