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Reply to "How to Select Motor Oil"

colortvset posted this referecnce to a book “Synthetic Automotive Engine Oils” (PT-22 SAE ISBN 0-89883-110-5) provides some insight to extended service intervals.

Can any one give me some idea where to purchase this info.

I do have extended drain intervals experience and would share them with any one that needs more info.

Thanks,

Jason Keranen
AZ-Syntheticlubes
email:az-syntheticlubes@direcway.com
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