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Old 08-21-2009, 08:36 PM
PaulK PaulK is offline
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Default Re: Oil Recommendation/Solid lifter 427

I have researched this a while ago with the different manufacturers chemists, and the present day (SM) Rotella, Delo400 and VR1 all have the required 1200 ppm zinc (especially for street use). These are a lot less expensive than Brad Penn, although the Brad oil does have more zinc ~1500ppm.
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