[Guest]

what grade oil do you use? 5w30, 10w40... etc? does oil grade effect gas millage? thanks

ps, talkin' about synthetic oil

 

[toysupra1]

i'm also in so cali and i've been using mobil1 10w30. i think weather determines which grade of oil you should use.

 

[Guest]

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.

 

[*wishlist*supraTT]

i also use 10w30 but not sure how much mileage i get.

 

[toysupra1]

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.

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.