6 Speed S4 Posted August 12, 2015 Report Share Posted August 12, 2015 AMS oil? Quote Link to comment Share on other sites More sharing options...
Farkas Posted August 12, 2015 Report Share Posted August 12, 2015 Seems strange, esp since the more detergents the more your oil acts like a sanding agent as well as a lubricating agent. I get they want the high zinc content but eh....what did they use before Rotella T6? There are a ton of specially formed oil blends with high ZDDP that are intended for "race use" and don't exactly need certification from the EPA/DOT or whomever it is they go through. However, those specific oils don't come without a heavy price. When analyzing and before the EPA started pushing for greener oils became a thing, people went crazy buying oil like Rotella T because it was cheap, easily found local, and high in ZDDP content. Mobile 1 even used to be a great oil with high ZDDP, but that changed maybe 4-5 years ago. So you ask what they used before T6? People "in the know" had a lot of choices, but people didn't start making a stink about ZDDP until recently when the EPA started giving a fuck about clean oil. Quote Link to comment Share on other sites More sharing options...
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