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Old 03-23-2008, 03:59 PM   #6
Scooby Specialist
Member#: 44422
Join Date: Sep 2003
Chapter/Region: SWIC
Location: Gilbert, AZ
2009 G8 GT
Cammed, sprayed, stalled


The Amsoil ASL 5W-30 and ATM 10W-30 oils both have very similar properties. You would be well served using either but the 5W-30 would probably give you slightly better fuel economy.

Remember, oil weight is not what protects your engine against spun bearings. It is the viscosity, resistance to shear, and lack of volutility.
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