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1986 240 is it ok to go from 10w 30 to 5w 40 200

Patrick,

I have no personal experience with synthetic oil, but I have been reading the postings of great minds on this Brickborad since it's inception and the advice on the question of switching to synthetic oil has always been NO! The synthetic cleans the engine so well that it will cause leaks in an engine that has not used it from very low mileage.

Len






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New 1 1986 240 is it ok to go from 10w 30 to 5w 40 [200]
posted by  someone claiming to be am I stupid  on Sun Mar 23 17:15 CST 2008 >


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