Well since we all LOVE oil threads I figured I'd add some fuel to the fire ....I ran 15w50 for about 3 oil changes and saw no ill affects from it, and YES, the mobil 15w50 is 229.5 approved. Prior to that I ran liqui-moly for a long time and it was great. Hopefully tomorrow I will be switching to Castrol 10w60 and giving it a try. I live in a God awful hot climate(78deg-105deg) and my engine is approaching the 250 mark so a little thicker oil is prolly a good thing anyway. I know that MB has their oil recommendations but I trust THE MAN a lot more than MB when it comes to how our M156s actually operate in the real world and what they need to have the best longevity. Tasos swears that for the Middle Eastern climate that he ONLY uses 10w60 for the m156, and my climate is very similar to the Middle East temperature wise. Flame on!!!!
The only thing you are adding is more evidence of your own ignorance.
My e63 has 105k miles, I live in Florida and tried Mobil 1 0w-40, and the car is sucking this through crank case breather and the intake manifold. I fitted a catch can and it was filled in about an hour. From my experience it is too thin in this climate (70+), it looked less dense than water when I drained it. These are hand built engines, oil weight is temperature reflective/dependent and yes my piston rings are probably worn out. These are large capacity engines built to rev - either rebuild the engine or use thicker oil to protect the rings is my experience. And I guess my point is not all engines are 100% identical. Temperature makes a big difference to oil performance hence the numerous different weights available. Rant completed lol
My e63 has 105k miles, I live in Florida and tried Mobil 1 0w-40, and the car is sucking this through crank case breather and the intake manifold. I fitted a catch can and it was filled in about an hour. From my experience it is too thin in this climate (70+), it looked less dense than water when I drained it. These are hand built engines, oil weight is temperature reflective/dependent and yes my piston rings are probably worn out. These are large capacity engines built to rev - either rebuild the engine or use thicker oil to protect the rings is my experience. And I guess my point is not all engines are 100% identical. Temperature makes a big difference to oil performance hence the numerous different weights available. Rant completed lol
I used Mobil 1 5w/50 in a turbo street car i used to track and the hot idle oil pressure was scary - as in there was virtually none. I also ended up with scuffed cams and finger followers. I rebuilt and modified the motor and ran Motul 10w/40 Chrono 300V. I've still got 15 litres of the Mobil 1 5W/50 sitting in my garage at home left over which I'm not keen on using.
My brother initially used Mobil 1 0W/40 in his twin turbo LS2 powered car and the oil pressure gauge would fall to zero after a fang at idle. The oil pressure light didn't come on though so there was still some oil pressure just not enough to register on the oil pressure gauge! He ended up switching to Castrol 10W/60 and the car has run fine in this level of modification for the last 12 or so years.
I seem to recall the Corvette owners manuals were recommending Mobil 1 15w/50 if the car was being tracked instead of the standard 5w/30 fill.
I've been using Castrol Edge 0w/40 in my Ford G6E turbo for the last 9 years and runs fine with zero oil consumption. I was thinking of trying it in the C63....anyone have any UOA on the Castrol in this weight in the C63?
That’s great about other cars. I also ran M1 15W-50 in a high-strung Talon back in the day. It was the right oil for that use.
Those cars have completely different engine architecture and requirements than an M156. You use anything thicker than a 5W-40 at your own jeopardy as the engine and it’s small oil passages were not designed for it. Regardless of what it “sounds like” or if the oil runs out “like water”, the fact is that the engineers who designed and built the engine specified a specific weight range for a reason. If you’re not running UOA’s after oil changes and quantifying if the oil is good, bad, or otherwise, and going off of prior experience with other cars or what you “feel” is the right oil by look or sound, then you’re doing it wrong.
I fitted a catch can and it was filled in about an hour. From my experience it is too thin in this climate (70+), it looked less dense than water when I drained it.
That's NOT normal. Tons of troubleshooting info on the internet for that problem.
here in UAE we have multiple options as the weather is extremely hot we suggest to have thicker oil, need suggestions
0W-40 or 5W-40 are the only oil viscosities approved for use in the M156 engine unless you want to prematurely damage it, and all other things being equal, they are both equally thick (40 weight) when hot. Who says that you need thicker oil than a xW-40 because your ambient temperature is ~10C hotter than it is in other parts of the world?
If you are overheating the oil - a known issue in a C63 with the MCT in ANY climate - you need a bigger oil cooler, not a thicker oil.
0W-40 or 5W-40 are the only oil viscosities approved for use in the M156 engine unless you want to prematurely damage it, and all other things being equal, they are both equally thick (40 weight) when hot. Who says that you need thicker oil than a xW-40 because your ambient temperature is ~10C hotter than it is in other parts of the world?
If you are overheating the oil - a known issue in a C63 with the MCT in ANY climate - you need a bigger oil cooler, not a thicker oil.
Hey there sorry to reopen this thread but I was wondering what you recommend on the m156 at this point? I've always been loyal to mobil 1 0w40 in my benz's (i've tried almost all the majors and have come back to mobil 1)... my last vehicle an e550 however had a valve issue it still ran great but produced some smoke from burnt oil (not sure if that was normal for the age @ 140k miles or something else). I was considering going with mobil 1 5w40 european as I've heard it does better in heat than 0w40 (i'm in a hot climate and drive pretty aggressively). Also mb seems to recommend 5w40 over the 0w40 currently and has their own branded 5w40. Would you think this would make any difference or is there another oil that would be prefferred on this engine?
Assuming the MB 229.5 Approval is in play: 5W-40 tends to be presented as the preferred oil choice, with 0W-40 being a great alternative for winter-driven M156 cars.
I had some correspondence with Blackstone on their observations with various oils in M156 cars, and they had this to share:
Quote:
Originally Posted by Blackstone Laboratories
Finally, I don't have a recommendation when it comes to better oil. That's partly because we're an independent lab, but it's also because we've yet to truly see one oil outperform another in analysis. If the oil meets API standards and OEM recommendations, it's going to work well in the engine.
My car ran Rotella T6 for awhile, although the last few OCIs were on Motul Xcess Gen2.
I'd pick either of those over this latest Mobil 1 5W-40 since they have been shown to (via numerous UOAs) to work well in the M156.
Also, keep in mind, this thread is nearly a decade old. Pretty much all of these oils have experienced formulation changes since then.
Assuming the MB 229.5 Approval is in play: 5W-40 tends to be presented as the preferred oil choice, with 0W-40 being a great alternative for winter-driven M156 cars.
I had some correspondence with Blackstone on their observations with various oils in M156 cars, and they had this to share:
My car ran Rotella T6 for awhile, although the last few OCIs were on Motul Xcess Gen2.
I'd pick either of those over this latest Mobil 1 5W-40 since they have been shown to (via numerous UOAs) to work well in the M156.
Also, keep in mind, this thread is nearly a decade old. Pretty much all of these oils have experienced formulation changes since then.
I think shell may be the only major I haven’t tried. I did use motul 8100 at one point and it was probably my second favorite after the Mobil 1 (super expensive though). Was wondering if shell is the same thing that Mercedes is branding as their oil.
I think shell may be the only major I haven’t tried. I did use motul 8100 at one point and it was probably my second favorite after the Mobil 1 (super expensive though). Was wondering if shell is the same thing that Mercedes is branding as their oil.
The Shell Rotella T6 mentioned is not what is in the MB-AMG labeled oil bottle.
It's really an exception case here, as it does not carry the MB approval, but is an excellent oil with a strong track record in the M156 community (many UOAs to back it up).
Mobil 1 was factory fill for a long time, but I am not sure who makes it for MB these days.
My car has run Shell Helix since the day I bought it new in 2013, the dealer used that at the time and I have continued with it over the years 5w 40 with MB approval.
Bought a new to me 507 a couple months ago with 40k on the clock. Last maintenance record for an oil change is from an MB dealer this summer with M1 5W-40. I'll be switching over to Amsoil 5W-40 Euro Formula, just waiting on a kit from Blackstone. Will report back with both findings when I get them.
