Posted by joeh on Thursday, January 23, 2003 at 1:59PM :
i have an 53 m37 with a small oil leak at the head gasket . i know the usual oil is 30 wt but untill t change the head gasket somebody told me to put in 40 wt just to get me by it is a well worn engine 61000 any input to this ??? thanks joe h
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