Engine Oil
MBWorld Fanatic!
Joined: Jan 2013
Posts: 3,745
Likes: 811
From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
The question itself is not worded correctly. It's like asking if hay is a good food for animals. It is for horses, but not so much for dogs.
A 229.5 spec oil (like the M1 0W-40) is for gasoline engines, and the M1 0W-40 is a very decent oil.
A 229.52 spec oil - in 5W-30 viscosity - is the proper oil for a diesel Bluetec. DanD - that's exactly what you should have in your car.
A 229.5 spec oil (like the M1 0W-40) is for gasoline engines, and the M1 0W-40 is a very decent oil.
A 229.52 spec oil - in 5W-30 viscosity - is the proper oil for a diesel Bluetec. DanD - that's exactly what you should have in your car.
Member
Joined: Dec 2016
Posts: 156
Likes: 26
GLE350d, Porsche TE
I'd stick with a 40 weight oil in this diesel if you're plannning on keeping it, oil topics generally end up having their own gravity after a while, hard to see trees through the forrest.
For warranty...use spec, but:
40 has better crankshaft bearing protection(for diesel)
30 better fuel economy (keeps EPA happy)
For warranty...use spec, but:
40 has better crankshaft bearing protection(for diesel)
30 better fuel economy (keeps EPA happy)
Last edited by nookie; Mar 7, 2017 at 08:47 AM.
Trending Topics
MBWorld Fanatic!
Joined: Jan 2013
Posts: 3,745
Likes: 811
From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
Not necessarily.
If you've got an old school NA lump with flat tappet cams or a race motor with loose bearing clearances AND a high volume oil pump, then a heavier viscosity oil (xW-40) will help cushion the bearing loads while maintaining good oil film strength and oil pressure when the motor is hot. Cold oil flow isn't much of a concern because it's a race motor (or a nice-weather car) that will primarily be used during warm weather.
For an engine with tighter bearing clearances (like the non-AMG ML/GLE variants) and a daily driver that you won't be takign to the racetrack every weekend and might regularly use in winter, I would stick with a lower viscosity xW-30 oil. You are going to get considerably better oil flow throughout the entire motor that will also provide better engine cooling (no internal hot spots), and the wear on the engine at colder temperatures is also going to be significantly reduced.
If you've got an old school NA lump with flat tappet cams or a race motor with loose bearing clearances AND a high volume oil pump, then a heavier viscosity oil (xW-40) will help cushion the bearing loads while maintaining good oil film strength and oil pressure when the motor is hot. Cold oil flow isn't much of a concern because it's a race motor (or a nice-weather car) that will primarily be used during warm weather.
For an engine with tighter bearing clearances (like the non-AMG ML/GLE variants) and a daily driver that you won't be takign to the racetrack every weekend and might regularly use in winter, I would stick with a lower viscosity xW-30 oil. You are going to get considerably better oil flow throughout the entire motor that will also provide better engine cooling (no internal hot spots), and the wear on the engine at colder temperatures is also going to be significantly reduced.
MB World Stories
The Best of Mercedes & AMG
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve
Verdad Gallardo
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping
Verdad Gallardo
10 Most Reliable Mercedes-Benz Models You Can Buy Used
Verdad Gallardo
Senior Member
Joined: Jul 2013
Posts: 493
Likes: 14
84 300d 2009 e320 bluetec (retired)/, now 2012 E350 4-matic blueefficiency automatic
Mobil 1 esp 0w30 sale
http://www.napaonline.com/p/MOJ121218
$5.79 qt
msds as a group III plus type oil.
is this better or worse than liqmoly 4605 oil?
$5.79 qt
msds as a group III plus type oil.
is this better or worse than liqmoly 4605 oil?
MBWorld Fanatic!
Joined: Jan 2013
Posts: 3,745
Likes: 811
From: The Great White North
W204 C63 Coupe, W166 ML350 BlueTEC, 928GT, Taycan GTS Sport Turismo, C5 Z06 & IS300 race cars
They're both decent, MB approved diesel oils. The M1 is thinner when cold so for that reson I'd take the M1 over the LM if you live somewherew where it drops well below zero, but aside from that they're almost identical. Both are made from hydrocracked dinosaur juice base stocks. Neither one is exceptional, but then again that doesn't matter for your application... you're not operating a bucket-wheel excavator 23 hours a day. Just change the oil regularly.
I highly doubt you'll find UOAs on those (I'd check BITOG), but as I said, aside from the cold viscosity they're almost identical.
I highly doubt you'll find UOAs on those (I'd check BITOG), but as I said, aside from the cold viscosity they're almost identical.
