Thread: Newer Oils in Older Engines
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Old March 11th, 2013, 05:33 PM
GMC-HDV6 GMC-HDV6 is offline
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Default Re: Newer Oils in Older Engines
Wow those are crappy numbers I run AMSOIL high zinc formulas. I think they are like 1500-2500 for numbers actually maybe more so.

Mike
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