My buddy at work has a 2004 2500 Ram with a Hemi that has about 6000 miles on it and wants to switch to synthetic (AMSOil). I told him I wasn't sure, but I thought you need to wait till at least 20,000 or 30,000 miles for the engine breaks in before switching.
Am I right, or will it be OK for him to switch to synthetic this early on?
Am I right, or will it be OK for him to switch to synthetic this early on?