Not to start a new oil thread but this might be our best oil
some of these thicker oils can rob power. I usually run 2 can of ceratec and top off with 0w40. I make sure I’m slightly under 9qts. This car can run weird with too much oil.
Do you need an oil analysis to hear the difference in my videos?
What analysis do you need? Molygen is basically liqui moly high tech with ceretec added to it.
Exactly what a few knowledgeable people in this thread have been trying to tell you over and over.




All the oils listed are approved for several Mercedes engines and not just for the M156. The manual clearly states to use only 0w40 or 5w40 for the AMG (M156) out of the 229.5 list.
https://bevo.mercedes-benz.com/bevol...hbegriff=229.5




https://bevo.mercedes-benz.com/bevol...hbegriff=229.5
I wouldn't get too hung up on brands and actual spec approvals , it's at great cost to gain thus the product is marketed at a higher price , so it's a marketing decision .
Non approved oils can be just as good , if they weren't my VW PD camshaft lobes would of been done a long time ago .
I tried the purple LiquiMoly to try and stop the noise, but it's still there. Ran with Ceratec also.
And that's after having the lifters and adjusters replaced...
The Best of Mercedes & AMG
although, i do agree partially with all views and opinions, i do have to say without an oil analysis we'll never know for sure. additionally, per many other discussions here, if i recall MolyGen is not approved because it has too high of PPM of different additives which push it outside of the realm of 229.5. molygen maybe a superior oil, but it does not fall in line with the requirements of 229.5 certification.




Without data, basing an oil on how it sounds or feelings about it, well good luck with that. Usually doesn’t end well and it’s only luck if it does.
There was this decade old argument between two oil grades , turns out under Castrol's production there was only 1 centiStoke in it !
If the line was drawn 0.5 different...
https://bevo.mercedes-benz.com/bevol..._en.html#close
https://bevo.mercedes-benz.com/bevol..._en.html#close
If one need to preserve the camshafts it is ZDDP that is the ****.
Yes, it might be hard on catalythic converters, but those are cheap if having racecats compared to four oem camshafts.
So, run just a slob of Redline additive and be done with it.
https://www.redlineoil.com/engine-oil-break-in-additive
ZDDP is well known to save camshafts, even by oil manufacturers, almost no one uses moly in their oils.
Very true of oil , very much a balance and too much zinc is a bad thing , like adding an extra egg in a recipe .
So the oil + Red Line break in additive ,
will = ?? Zinc ppm
https://www.onallcylinders.com/2018/...to-save-money/
As for the Red Line Engine Break-In additive, this is what it contains:
Bottle (16oz) contains:
33.8 grams total ZDDP (zinc dialkyldithiophosphate)
17,000 ppm, 7.8 grams Phosphorus (P)
20,500 ppm, 9.4 grams Zinc (Zn)
16.6 grams Sulphur (S)
We're indeed much better off leaving it to the tribologists to properly formulate oils to begin with. There are plenty of very good oils for every type of driving (whether you're racing or looking for an extended OCI and everything in between) already on the market.
I had 2 choices
229.5 5w50 and 229.5 high performance 0w40
I went with regular 5w40. anyone know the difference and know what oil mb is using today in the regular 5w40?
Last edited by skratch77; Aug 31, 2021 at 02:00 PM.






