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Old 07-16-2011, 01:21 PM
Three Peaks Three Peaks is offline
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Join Date: Jan 2005
Location: Hillsboro, OR
Cobra Make, Engine: Scratch built CSX style frame, Carbon fiber body, 393 Stroker, T-bird IRS, T5
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I guess I don't see this Cobra engine as any different than any other engine I've owned or built and I've always been partial to Valvoline in all of my engines. Once in awhile I'll use Quaker state and Pennzoil in a pinch, but usually Valvoline 5W-30 wins out.

Now that I'll be running flat tappets, I'll have to add a ZDDP additive at every change, but that is chump change to insure reliable performance and life of the cam/lifters.

Bob
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