Originally Posted By: Lex94
Thanks guys!
I think the Porsche has a 2 year OCI in the USA...I think.
But it may indeed have a bigger sump...The MB M272 V6 is 8.5 qts.
The TBN on M1 0w-40 in a bit over 11 but I can't find TBN info on ESP 5w-30.
The Porsche C30/VW 504 507 spec is the most demanding which is why I want to use an oil meeting that spec.
The M272 can go as low as 0w-30 viscosity according to Mercedes.
If it is just a TBN issue then I can deal with that.
MB recommends 1 year or 10K mile OCI now for the M272...They use to recommend 13K miles.
This VOA (
BITOG VOA) shows a TBN of 5.1. Which, as has been stated above, is perfectly ok for Diesel engines.
I would never use this oil in a european gasser. Stick with M1 0w40, GC, etc.... They are designed to handle the intrusion of gas in the oil and have TBN's exceeding 10.