Here's a polite challenge to the Amsoil and Red Line reps on this board. Since there is such animosity towards the API donut and how it affects oil specs, do you have any automotive OEMs that sing the praises of your products?
Since OEMs require API certified oils, why would they sing praises of a non-certified oil?quote:
automotive OEMs that sing the praises of your products?
They don't support the use of any specific brand. They require the use of an API certified oil.quote:
True...so I guess not a single automotive OEM would support the use of these products?
It's neither good nor bad...it's just the current situation.quote:
And that's a good thing?
Not quite true. The manufacturer's that use Mobil 1 as the factory fill in certain cars (Dodge in the Viper, Mercedes in its AMG models, all Aston Martins, and all Porsches) do recommend that Mobil 1 be used. They "support" this recommendation by placing special decals under the hood and in the owner's manual.quote:
Originally posted by turbochem:
They don't support the use of any specific brand.
So these manufacturers must really concern themselves with the API minimum standard "Donut."quote:
The manufacturer's that use Mobil 1 as the factory fill in certain cars (Dodge in the Viper, Mercedes in its AMG models, all Aston Martins, and all Porsches) do recommend that Mobil 1 be used. They "support" this recommendation by placing special decals under the hood and in the owner's manual.
Sounds as though the majority of people on this board do not give a lot of credibility to the API donut but do acknowledge the significance of the ACEA specs. I accept that.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.