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I agree with 90503 - my old mazda pickup knocked on 87, ran great on 89. I use 87 in the Camaro, it doesn't knock. I only buy Chevron with Techron though. I ran premium for a while last year when prices were low, I think it ran a bit snappier, but it doesn't run bad on 87 so while prices are climbing higher, I'll just stick with it.
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Tori
click the sig pic to view my build thread
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