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post #4 of (permalink) Old 05-27-2010
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gmantheman's Avatar
Joined: Jun 2008
Location: Escondido
Posts: 1,636
I have about 40,000 miles on my 4.10s since switching to non-synthetic and I have no issues.

RIP 2006 Mustang GT
New Ride 04 Pontiac GTO
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