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Change to synth 850

posted by  davidm on  Mon Jul 8 01:47 CST 2002
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The change interval would be due in part to oil breakdown (carrier oils in most synthetics aren't themselves synthetic), and also due in part to suspended micro-contaminants that don't get filtered out.

My synthetic oil drains much cleaner than the dino oils in my previous maintenance regimes ever did, and I run them longer - to about 7500 miles as opposed to 3000.

Could you go longer? Yeah, probably. But those oil ports in the turbo shaft bearings are awfully small...and I'd hate to clog one of THOSE up.
--
(98 S70 T5SE misc mods, mostly lighting) (92 940GLE)






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