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camaro5 · 11-30-2008, 04:03 PM

Royal Purple certainly has a full-fledged "cult following".

However, I don't think you can go wrong with Mobil 1. It's also what GM fills it with at the factory (LS3 for sure), and it's what they recommend for the life of the vehicle.

11-30-2008, 04:03 PM	#45
camaro5 Drives: X-15 Velocipede Join Date: Mar 2008 Location: SW Florida Posts: 4,630	Royal Purple certainly has a full-fledged "cult following". However, I don't think you can go wrong with Mobil 1. It's also what GM fills it with at the factory (LS3 for sure), and it's what they recommend for the life of the vehicle.