DaveBen
SDD Senior Member
When I first got the truck, I took it in for the first oil change (free) and the tech marked the top and the side of the housing with a paint mark so you could see that it was tight and not over or under tightened. Firm but not tight. The o-ring does the sealing and not how much pressure you put in the top. Big Joe is right; TIGHTER is Not Better.
Dave
Dave