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Royal Puple 75W90 Gear Oil in the gearbox?


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One word: Incredible!


Not a big fan of synthetic, but last night I finally took the plunge. Man does it ever shift smooth and no more clunk between the gears. Only on downshifting, I can’t believe the difference this stuff made!




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That was my experience with Redline. Somewhere I read a lab report of Redline vs. Royal Purple, etc. and they said Royal Purple was the best of the lot.

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