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Old 09-18-2009, 12:32 PM
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Quote:
Originally Posted by sincebeen View Post
I've been running this oil in my 09' HEMI since first oil change (which is only one ) but during the first few minutes of warm up I hear a sort of light knocking noice from the engine. Anyone else?

I was thinking about switching to Mobile 1 (or even stock) oil next change to see if it stops.

Thoughts?
Dont go from Synthetic to canvetional!!! it will mess things up... the knocking is the valves and it is totally normal. they do it more with conventional
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