quote:
Originally posted by TooSlick:
The API sets the bar so long on the SL specification that the presence of the API donut is meaningless in terms of oil quality. If I was looking for a top tier gas engine oil, I'd look for something that is ACEA A3/B4 rated and also carries some of the European OEM specs like VW 502/505, MB 229.3 and BMW Longlife. Even the cheapest Walmart Tech 2000 petroleum oil is API licensed ....
I'd like to see an entirely different set of sequence tests for synthetics that are much harder to pass. I believe you'd find Redline and Amsoil willing to participate in a meaningful ratings system that separates the wheat from the chaff.