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In Reply to: marvel and synthetics - are they compatible? posted by Todd on 12/16/00 at 4:32 PM:
I'm a retired airline A&P, retired FAA aviation safety inspector. I've been using MMO since 1940's I used it in crankcase and fuel tank in everything i've ever driven, flown, or rode till i started using pure syn.I started with MOBIL ONE,switched to VALVOLINE pure syn as soon they made it, but i've always been afraid to put it in an eng with syn in crankcase. If any body out there has any info from VALVOLINE or MMO, I would sure like to hear from yu.
BRGDS
Kerry Duckett
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