Oil coked engine posted by zman03 on January 30, 2013 at 01:37 AM
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Try the least drastic, and cheap alternative first. Not mobil 1 shit. Do the change with 4.5L of T6, and then tell us how it goes. Then, and only then try something different.
You realize if you spray the top end with Cleaner, you are going to strip all the oil off and damage components on startup. Probably worse off doing that if I am honest.