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Old 11-05-2007, 02:12 PM   #6
Tom S.
Driving 4x4's since 1973

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Status: Offline
Join Date: Oct 2007
Member ID: 76222
Location: Waterford, MI
Posts: 399
Re: Amsoil Question?
Since you live in Michigan, go with the 5w-40. It will turn over much easier when the temps drop. I run 5w-40 year round, but not Amsoil. Since I travel a lot, I use Mobil 1 because its much easier to find on the road.
2006 LBZ 3500 HD
Single Rear Wheels

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