Quote:
Originally Posted by SenorFunkyPants
In the UK there are two versions of this oil:
Edge professional 10W60 FST for M engines.
Edge 10W60 FST for M engines.
The "professional" version is the OEM fill oil and exclusive to BMW dealers.
"Edge" is the retail version.
Both meet the same specs but apparently the "Professional" version is more strictly quality controlled.
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I sincerely doubt that Castrol will run two separate manufacturing and processing lines for what's basically the same oil, just to keep BMW happy. It is probably nothing more than branding, possibly related to the exclusivity deal with BMW. Maybe BMW patented the term "professional" to make it look like they and their stealerships know what they're doing,
And that's why Castrol cannot sell a "professional" oil directly to the public.