Is there a really big difference in premium vs regular gas?
#123
#124
forget all that.....i usually, almost always mix my local 91 octane with 101 octane.....at about 40% 101, to 60% 91octane....... i figure i'm running around 95'ish octane......and there's a big difference in performance that i rarely drive with just 91 anymore........worth every cent...!!....
#125
Originally Posted by jalilig35
is there really a big difference using premium gas vs regular gas for normal everyday driving in the g35? using regular gas really ****s up the engine?
#126
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