Quote Originally Posted by 5speed View Post
I put premium in my old Civic and noticed a difference automatically. Just remember Grades just have to do with Octane levels not the quality of the gas. That is why you pay more at a Chevron or Shell compared to other places. Their gasoline itself is better.
yep! and QT has some of worst gas out there! their 93 oct make my 350Z toss CEL's and run like shit.