Mostly true - that last sentance? Eh, not really, no.
Not at all, in fact.
Let me gently suggest that people who experience problems with MB engines are not using an MB approved oil (see that Bevo link I provided) and instead, looking at “full synthetic” or “API” as being sufficient, when I promise that those approvals are irrelevant to the engine in question.
10,000 mile intervals on an MB 229.5 approved oil yields a spotless engine. Indistinguishable from new.
Here is one:
Under the valve covers, 2005 Mercedes SL600
While changing the sparkplugs on my wife’s roadster, I discovered a minor valve cover leak. Mercedes books about 8 hours* for a sparkplug change on the car, which has the M275 V-12 engine with 2 plugs per cylinder. Yes, that’s a total of 24 iridium plugs. since the coils have to come out to get...
bobistheoilguy.com
Sure, that’s a 5X,XXX miles, but at well over 120,000 miles, the same engine in my other car is equally spotless. So clean as to look brand new. Both engines will go 10,000 miles without needing a top off, they use so little oil.
The 229.5 holds up very, very well during an extended drain.
Mobil 1 0W40, 4945 mi, Mercedes S600 M275
Here's the latest UOA on the Mercedes in my signature. Mobil 1 is still doing a great job. I've not been driving the car as much, and while the OLM starts telling me to change it at a year, I went 15 months.
bobistheoilguy.com
