Posted by Rick in SC on Monday, February 27, 2006 at 7:01PM :
In Reply to: oil question posted by chrisnj on Monday, February 27, 2006 at 5:16PM :
The truck originally had 30 wt non detergent. If nothing has been done to the engine and it has sludge buildup in the oil pan, you need to continue to run 30 wt nd. Most likely your has been changed to high detergent oil, if so 30 wt hd is fine.
Rick