Quote:
Originally Posted by CorneringArtist
I'm giving Chevron 94 a shot and seeing if there's a mileage difference. The GTI seems to like 94 based on butt dyno, Shell 91 is okay, but Costco 91 seems to get far less to a tank than Shell despite a similar feel.
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I just switched over to Chevron 94 from Shell 91, I think I'll be going back to Shell 91 on the next fill up; the car's just louder for some reason when I use Chevron.