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In Reply to: What fluids to use? No record, must start over. posted by Ed on January 08, 2000 at 14:52:38:
: I have no record of the fluid history of a "new" 86' 635. Synthetic oil advantage? Standard oil 10-50? What are the reprocussions of changing oil brands and what do 6ers like to use?
My '84 633csi has been running 10W-30 all it's life and lately I've switched to a synthetic blend and it seems to use more oil now. Think I'll stick with the old.