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      03-13-2022, 06:26 PM   #6
RonronEG
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Drives: BMW 540i
Join Date: Dec 2020
Location: Northern California

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Quote:
Originally Posted by carseatsm5 View Post
We’re only 91 octane here so I throw a gallon of race gas in just for fun when I fill up and am in the mood. I feel a difference but probably just in my head.
I'm sure your car probably pulls timing running 91, that 100 octane boost you feel is real.
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