Quote:
Originally Posted by Y22C
Sorry to say, but due to the new diesel emission standards, and the sensitivity of the emissions control systems on diesels to ash, the zinc levels in Rotella and other diesel oils have been reduced to somewhere in the 900-1000 PPM range.
Ken
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I'm still seeing 1100 ppm phosphorous and 1200 ppm
zinc - at least in the CJ-4. I understood from this guy that it's phosphorous they have to limit and
zinc isn't an issue and often isn't even reported. But - something to keep an eye on. I do like Joe Gibbs - it seems to have really good clinging properties.
http://www.corvetteforum.com/forums/...-corvettes.pdf