- Joined
- Jan 4, 2021
- Messages
- 127
Searched through the forum and I think I understand most of the comments. In addition, referring to some other sources (e.g., Lake Speed Jr’s youtube), I have concluded the following and would be good to get some validation / advice / feedback:
- Approved – easy and basically the oil manufacturers / mixers submitted samples, supported / paid for the testing by manufacturers (e.g., Porsche A40) and passed
- Meets or exceeds, or recommended – this seems somewhat grey (and some BITOG posting says this is "BS" which I understand)
- Some manufacturers and/or “mixers” theoretically think the oil is good because their oils have similar formulation AND/ OR
- Mixers receive already approved additive package(s) from say….the Big 4 (Lubrizol, Afton, Oronite, Infineum) which is the base for various car manufacturer standards (e.g., Porsche, MB, VW, etc.)
- Then mix with additional additives for their liking / marketing
- Consequently, if a company receives / uses an “approved” additive package (e.g., the Porsche A40 additive package), then this company can classify / define its oil as “meets or exceeds” and/or “ recommended” (e.g., Driven DT40??)
- Once I sent an email to Shell / Pennzoil asking “why does PP 5W40 Euro have the Porsche A40 approval but not your PP 0W40” and the answer was basically “we decided not to submit samples” – this may be more business-related (e.g., Porsche / Mobil vs. Ferrari / Shell?) but what do I know
- Do car manufacturers make money and/or at least cover their R&D costs by having these (GM, Nissan, MB, VW, etc.) “approved” oil programs and asking oil companies to participate in testing (e.g., they can continuously operate their engine testing labs without idling and have oil companies fund via the approval / certification process)? I certainly don’t remember seeing so many manufacturer “approved” labels on the oil in the old days