Petrol/Gas Petrol/Gasoline Oil Specification Thread (B58 Engines)

[Tom D]

I think the issue with the factory oil is that it’s thin to aid with fuel economy. This however compromises its ability to lubricate under high pressures and temperatures. I’d say that for a hard working engine the 0w40 would be better. So long as it is a low SAPS oil.

What is the spec for Australia? SA? Middle East? Is it still 0w30 in the desert?

 

[DCPU]

I think the issue with the factory oil is that it’s thin to aid with fuel economy. This however compromises its ability to lubricate under high pressures and temperatures. I’d say that for a hard working engine the 0w40 would be better. So long as it is a low SAPS oil.

What is the spec for Australia? SA? Middle East? Is it still 0w30 in the desert?

Australian Owner's Manual lists the same oil for the diesel ~ Petronas Syntium 0W30 DG.

 

[CountyV8]

Wonder what BMW who made the engine recommend?

 

[Steveo]

It's only for the diesel.

The petrol engine uses oil from Fuchs.

Well I’ll be Fuch’ed

 

[DCPU]

Wonder what BMW who made the engine recommend?

Good question.

I do know that I have seen two mentions that BMW LL-12FE (the oil referenced on the bonnet label) is not suited for engines with 2 or more turbochargers. The first is in post #9: "Not for diesel engines with 2, or 3 TC's." and the second in post #44 link from Opie Oils: "Not suitable for engines with 2 or 3 turbos."

I thought I'd read that the B57 has two turbos?

 

[bigleonski]

Penrite will have an option. They do for the beemers, so that’ll do me.

 

[CountyV8]

Just Been onto Fuchs they say this is the oil for the BMW spec SAE 0W-20 BMW LL 17FE

TITAN GT1 FLEX 5 SAE 0W-20 | Automotive lubricants | FUCHS LUBRICANTS (UK) PLC

Premium Performance Engine Oil with new XTL-Technology in path-breaking viscosity class. Specially designed for highly stressed downsized engines with maximum power output, for extreme fuel-economy characteristics and reduced CO2 emissions. Excellent cold starting behaviour, very fast oil...

www.fuchs.com

 

[ARF]

Increased viscosity = more fuel use, but less oil consumption, but obviously better in high temp.
Sir Jim is a chemical engineer so he might off had some input in to oil spec, it is his area of expertise.

Higher viscosity can lead to increased wear, fuel and oil consumption in a modern engine developed with tight tolerances.

 

[Mr. Largo WINCH]

Bonjour à tous
La plaque indique

Par exemple l'huile MOTUL 0W30 conforme aux spécifications BMW

 

[Krabby]

I believe cars should be vegetarian. Only the finest oils for my ride:

 

[DCPU]

Have you got a reference for that?

It's in each of the posts referenced.

The latter:

 

[DCPU]

Bonjour à tous
La plaque indique
View attachment 7807448

Par exemple l'huile MOTUL 0W30 conforme aux spécifications BMW
View attachment 7807449

Except the Motul data sheet is quite clear:

 

[Stu_Barnes]

Well, this thread is going monograde.

It's quickly become apparent that we are going to need a thread for petrol and diesel variants.

This thread is now the Petrol / Gasoline thread.

If anyone wants to start doing any oil analysis then that will be a stand alone thread.

So the rabbit hole goes deeper....

 

[Stu_Barnes]

BMW Longlife-14FE Oil Spec​

Replaced by BMW Longlife-17FE+

BMW Longlife-17FE+ Oil Spec​

The BMW Longlife-17FE oil specification was introduced around 2017. The BMW Longlife-17FE oil quality standard requires a viscosity of SAE 0W-20 and is typically accompanied by an ACEA C5 or API SN Plus specification. It also requires a PAO group VI base oil (polyalphaolefines). This engine oil formulation is considered a low SAPS, Low sulphated Ash, and Low Phosphorus Sulphur additive oil formulation for both BMW gasoline and diesel engines. The BMW Longlife-17FE oil specification is prescribed for all 2016 and newer BMW B36, B38, B46, B48, B58, N20, and N26 engines. The BMW Longlife-17FE is also an updated version and a replacement to the BMW Longlife-14FE for improved emissions and fuel injection LSPI issues. BMW Longlife-17FE spec oils are also known as OE part numbers 83212461990, 83212365954, and 83212461988.

https://www.blauparts.com/blog/about-bmw-oil-quality-specifications.html

So the petrol engine oil spec is already out of date according to these people. Is this a case of a '+ gate' typo, or just that its taken IA so long to come to market that the stickers are out of date...

 

[Logsplitter]

I think the issue with the factory oil is that it’s thin to aid with fuel economy. This however compromises its ability to lubricate under high pressures and temperatures. I’d say that for a hard working engine the 0w40 would be better. So long as it is a low SAPS oil.

What is the spec for Australia? SA? Middle East? Is it still 0w30 in the desert?

I don’t think the ambient temperature matters to much it’s the engine temperature that counts. The manual states that all recommended viscosity grades of oil for the grenadier are suitable for high ambient temperatures. I suppose if the cooling system is working as should and keeping the engine at optimum running temperature then all is good.
quote from the manual “It is essential to select the appropriate viscosity grade oil depending on the minimum ambient temperature. All of the recommended viscosity grades are suitable for high ambient temperatures.”

 

[Tom D]

What I’d like is a genuine unbiased opinion on is whether using thinner oils to achieve greater fuel economy is to the detriment of engine wear. I get all the modern engine tolerances are finer etc but I want to know; will going up a viscosity grade do any harm? Because the way I see it it will prolong engine life.
What I do know is its usually ok to go down a grade on the Winter viscosity and up a grade on the summer viscosity but not in the opposite direction ….
I.E. 5w30 to 0w40 is ok (unlikely to be a problem) but going 5w40 to 10w30 could be a big mistake…

 

[CountyV8]

Like in the other thread I won't mention the drain intervals

 

[Hannes01]

In every car forum I visit (US V8, Porsche, BMW, etc.) the longest treats are about oil, additives and change intervals.

simply put in what is recommended by the manufacturer and comply with the periods, done!

 

[Stu_Barnes]

Like in the other thread I won't mention the drain intervals

On top of that, let’s see how people interpret arduous usage or whichever term IA have used.

 

[IG_in_AZ]

Bonjour à tous
La plaque indique
View attachment 7807481

Par exemple l'huile MOTUL 0W30 conforme aux spécifications BMW
View attachment 7807482

That was what I found as well, looking for the specification BMW LL-17FE. MOTUL, I mean.