Thread: Royal Purple
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Old 06-27-09, 03:58   #8 (permalink)
RTexasF
Not too old to learn.
 
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Join Date: Apr 2005
Location: Brownsville TX
Posts: 864
Re: Royal Purple
Quote:
Originally Posted by AeroCleanse View Post
Mobil 1 went from group IV basestock to group III basestocks. Shame really.
Suspected but unproven. It can't be stated as fact.......yet.
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