10W40 Engine Oil for M271 Evo Engine
Joined: Nov 2016
Posts: 7,847
Likes: 3,496
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
10W-40 is not an approved grade for your engine. That doesn't mean you can't use it, but I would stick to what is approved. Look for MB 229.5, 229.51 or 229.52 approvals. Also, you should look for API SP rated oil.
Please include your location in your profile.
Please include your location in your profile.
Last edited by JettaRed; Jul 8, 2024 at 12:47 PM.
Member
Joined: Dec 2023
Posts: 217
Likes: 74
From: TN
2013 w204 c250 coupe & 2001 Dodge Ram 2500 24v Cummins
Jetta Red is correct, that isn't an approved oil. But, I am running LiquiMoly MOLYGEN 5w-40. I switched from Mobil1 0w-40.
New Generation MOLYGEN meets the MB 229.5 spec but isn't on the approved oil list. I have not had any issues and it actually lowered my overall engine noise.
I highly recommend the LiquiMoly MOLYGEN 5w-40.
Ant
Last edited by antboii; Jul 9, 2024 at 06:22 AM.
Senior Member
Joined: Mar 2022
Posts: 342
Likes: 112
2015 C400 4MATIC Palladium Silver Metallic
wow, learn something new everyday. Never heard of an oil offset before.
I've always done the "6.9 quarts" both my C400 manuals call for, always puts me close to the max line.
I've always done the "6.9 quarts" both my C400 manuals call for, always puts me close to the max line.
MBWorld Fanatic!
Joined: Sep 2013
Posts: 2,346
Likes: 692
2021 GLB250 FWD, 2023 GLA250 FWD, 2013 C250, 2015 GLK350, 2005 ML350SE, 2003 E320
Assuming your country MY (Malaysia) in your profile is correct, you probably have consistently warm weather, so the 10W viscosity should not be an issue. If you can find the sufficient ZDDP level in a 10W-40 oil locally, it probably would not hurt to use it. Possibly Petronas, who teams with Mercedes in F1 racing, would have something.
Racing oils all have even higher levels of ZDDP, however, more than 1000 ppm can harm catalytic converters. Racing oils also have much higher viscosity, e.g. 15W-50 or 10W-60, making them generally unsuitable for road car use.
I hope this shines some light on a complex issue.
