Help me choose an oil for Mercedes cars -3 Choices

[Doug Hillary]

Hi,
Ayrton - I shared accommodation at Herschbroich near Nurburg with a Mercedes Team (Autohaus Sing) at the Nurburgring for the 24hr ADAC-Zurich event this year. I spent a lot of time in their Pits and with their Technical and Prototype Development people. They used M1 0W-40 in their SLK 350 as they do in all of their cars. This is a Team with direct factory linkages

Aston Martin also used M1 0W-40 in their Team cars in the same event. It is used in their engine development programme which is based at Nurburg

They expect a little oil useage in these conditions

I have used M1 M1 0W-40 in my last three Benzes. None of these consumed any lubricant between oil changes. It is the lubricant used by MB Dealers here - the average OCI is around 17kkms (around 11k miles). Of course it is the lubricant used by most Porsche Owners and oil consumption is typically near zero

Most German car makers have an "acceptable" oil use factor and in the case of Porsche this has been 1.5ltrs per 1kkms for some decades now

Mercedes do use a 5W-30 viscosity as a FF in some engine families at Unterturkheim

 

[Audi Junkie]

What was the final word on USA and Euro 0w-40 being different products?

I'd probably just order Pennzoil Ultra 5w-40 Euro instead.

https://www.buypennzoilultra.com/index.cfm

 

[deven]

is this your uoa? if yes, stick with it.

 

[Ayrton]

Originally Posted By: deven
is this your uoa? if yes, stick with it.

Yes, thats it.

Don't you think the Calcium is low though? That would shoot up with M1 0w40.

The Formula M seems to be lighter on additives than M1 0w40, thus the lower starting TBN.

It's also for a second car too, not just that one.

 

[chet2]

mobil 1

 

[Oldwolf]

I've had M1 0w40 in my Explorer for 6000 miles now. This is the first change wit this oil btw and no consumption yet. I'll watch the Cavalier, this is its first M1 0w40 change too, but less than 500 miles on it so far.