Re: Oil Recommendation/Solid lifter 427
I run Castrol GTX in my stock ZL-1 w/GM solid cam and lifters and never had a problem. I think the problems are with Chinese made cams and lifters, I only run GM stuff. The cam companies blame the "new" oil when it is their offshore crap that is to blame. I do think it is hype that you have to have high levels of Zinc. If you break-in your cam properly with the inner valve springs removed and lots of cam lube, you should have no problems.
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1962 Oldsmobile Jetfire, Factory all Aluminum V8 Turbocharged and Methanol Injected TURBO ROCKET engine, 4 speed Hydramatic, 4 link rear suspension, 3.36 Anti-Spin differential, California car, PS, PB, PW, AC, Jetfire 2 option package.
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08-21-2009, 08:59 PM
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