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Old 08-08-2012, 09:01 AM
rwa1015 rwa1015 is offline
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zddp oil

I use Spectro Motor Guard 10w40(high performance racing oil) It was recommended by a local engine builder specifically for flat tappet cams and label says1800 ppm zinc and phosphorus I don't know any specifics on what is actually the best but this oil has worked for me and I plan to continue using it.
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