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FWIW Pennzoil 25W-50 Racing Oil has 1960ppm of Zinc and 1800ppm of phosporous. Quaker State Q Racing Synthetic is almost identical at 2000/1800
I haven't researched every oil available, but I've seen nothing higher than these two.
Dave
Dave,are those numbers from actual oil analysis or advertised figures ? I had an analysis done on the Brad Penn,here are the numbers.
The figures I got came from an article in Hot Rod Magazine, June 2006 entitled "When good cams go bad". I'll see if I can find it to see if it was tested or not.
Dave
1970 Super Bee 440 Six Pack
1974 'Cuda
2008 Ram 3500 Diesel
2006 Ram 3500 Diesel
2004.5 Ram 2500 Diesel
2003 Ram 3500 Diesel
2006 Durango Limited
[url] http://1970superbee.piczo.com [/url]
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