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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
That was an interesting read, I had no idea the claims they make aren't actually based on research. But I am still going to try RP on the next oil change.
... I just read somewhere (I'll try to find a link), where RP was told to change something in their advertising because certain parts weren't up to specs in the certification they claimed to have...
I hadn't heard about that, but I remember reading an article in some sort of hot rod magazine where they ran a corvette on a dyno (Mobil 1 in the engine), left it strapped in place, changed the oil to RP, and ran it again! Made 4 more hp on top. Thought that was interesting.
Back to the original question, Royal Purple, Mobil 1, AMSOIL are all good choices. I really can't speak to other synthetics (haven't used them).
