To note: LM is not a boutique oil even though it is somewhat marketed that way here in the U.S. Common oil over in Germany and while I've used (and currently use) their products extensively and believe they make a solid Euro oil, it's not boutique at all.
High quality 5W40 for BMW
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It's suitable for the Porsche GT3 RS after all.
edyvw
$50 site donor 2025
Redline is more of a track oil. Rule of thimb is: no track oil on the street. Always better street oil on track, if doing occasional track days.
Don’t forget, Porsche A40 has specific track requirements. 8X1hrs of track testing. Mobil1 0W40 has that approval (and other oils), Redline just claims it meets and exceeds. I use Redline products , they are good, but I ain’t paying that much for engine oil when I have access for approved stuff for cheap.
My rule of Thumb:
- No diesel oil in a gasoline engine
- No 0w- in a high reving engine with high piston speed. At least 5w- is what i want.
- In a demanding engine, use the best oil you can get, PAO, Ester, a solid additive pack.
The M3 engine IS demanding, it´s high reving and known for problems with the engine bearings, if i am correct.
Side Note:
My car is notrious for problems with the cam chain tensioner. Mainly caused by length cam chains.
There was a little investigation, a poll in the german Forum.
The only guys wich didnt have problems had one thing in Common: They all used the Motul 300V Car Racing oil, the stuff with the extra load of Anti wear additives. But without any Approvals. The other members faced problems, at half the mileage, using "Approved" oils.
Makes you think, me at least.
Mobil 1 0w-40 is a outstanding of the shelf oil, no doubt. But i think Red Line has a edge. A small one, but it is there, i think.
- No diesel oil in a gasoline engine
- No 0w- in a high reving engine with high piston speed. At least 5w- is what i want.
- In a demanding engine, use the best oil you can get, PAO, Ester, a solid additive pack.
The M3 engine IS demanding, it´s high reving and known for problems with the engine bearings, if i am correct.
Side Note:
My car is notrious for problems with the cam chain tensioner. Mainly caused by length cam chains.
There was a little investigation, a poll in the german Forum.
The only guys wich didnt have problems had one thing in Common: They all used the Motul 300V Car Racing oil, the stuff with the extra load of Anti wear additives. But without any Approvals. The other members faced problems, at half the mileage, using "Approved" oils.
Makes you think, me at least.
Mobil 1 0w-40 is a outstanding of the shelf oil, no doubt. But i think Red Line has a edge. A small one, but it is there, i think.
OVERKILL
$100 Site Donor 2021
Amusing anecdote: The highest mileage S62 on M5board runs M1 0W-40, lol. Has over 300,000 miles on it, IIRC.
I was kind of wondering how there was any alleged link between piston speeds and the winter ratings of an oil as far as affecting performance goes.
OVERKILL
$100 Site Donor 2021
Indeed, lol.
There is a different shool of thinking. Having a thicker base oil is better for high reving engine.
Why did the manufacturer of my cars specs a 10w- oil as standard back in the year 2000 for a extremly high reving engine?
Why are there still no 0w- oils for Motorcycles? Yes, the gearbox, but is this the only reason?
But we can discuss this in a extra thread, i think.
Why did the manufacturer of my cars specs a 10w- oil as standard back in the year 2000 for a extremly high reving engine?
Why are there still no 0w- oils for Motorcycles? Yes, the gearbox, but is this the only reason?
But we can discuss this in a extra thread, i think.
OVERKILL
$100 Site Donor 2021
I mean, there are 0W-xx oils for ATV's and snowmobiles, which have the same engines...
https://shop.ski-doo.com/us/en/4t-0w40-synthetic-oil-4t-0w-40-synthetic-oil.html
I have M1 0W-40 in my 1,000cc BRP V-Twin right now.
Also, Porsche has used 0W-40 (M1 0W-40) forever, as did Nissan in the GT-R, the Corvette Race Team, numerous 24hr teams (at LeMans, Sebring...etc). M1 0W-40 was also a popular oil in the S62 (per my comment) because in the ROW it spec'd LL-01.
This is not a different school of thought, it’s only stupidity.
Also, US E36 M3 is not a high revving or particularly stressed motor.
The S50US engine in the US E36 M3 was not the S50 you knew in Germany, or the rest of the world. It was an enlarged version of the M50 that could have rightfully been called the M50B30, or later, the M52B32.
Yep, and as a mid-80s vintage design, predates all the demands and OE specs that later came into vogue. BMW said little about engine oils in the manuals of that era, aside from providing a temperature/viscosity chart, with an alternate bar for some mysterious vaguely defined "Special Oils."
Seeking an Nth degree oil might be an enjoyable exercise, but not absolutely necessary.
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But, why?
I've had great success with it in my 35 year old BMW (no leaks or consumption).
edyvw
$50 site donor 2025
And what exactly thicker base results in?
Thicker oil.
edyvw
$50 site donor 2025
Nah, I would like more specific answer. Mobil1 0W40 is thicker than Castrol 5W40 for example.
My attempt at being smart.
My two "thick picks" 0w40 Delvac and 5w40 Delo. Back in the day before the Exxon-Mobil merge, 0w40 Esso XD-3 was my go-to engine oil.
CH-4 with 1.5 SA, it had so much ZDDP it glowed in the dark. All the Imperial/ESSO lubricants got re-branded to Mobil.
I do believe that the 0w40 variant is a mPAO product like the "Elite" series. That would explain the cost.
The oil doesn't appea to have BMW LL-01 approval. It's stated that the oil meets or exceeds the OEM requirements, not that it has the BMW approval.
OTOH, the oil might have the MB 229.3 and 229.5 approvals.
The oil doesn't appea to have BMW LL-01 approval. It's stated that the oil meets or exceeds the OEM requirements, not that it has the BMW approval.
OTOH, the oil might have the MB 229.3 and 229.5 approvals.
View attachment 141818
edyvw
$50 site donor 2025
That is how Shell does it. They get approval but put meets and exceeds.
Don’t ask why.
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