BMW B58 Engine Oil Recommendation

I've been using Walmart Supertech or Costco full synthetic in Ford and GM cars, in the mfr. recommended viscosity (0W20 or 5W30), for 20 years...OCI 5K miles...no engine problems. I'm in the Phoenix AZ area, so very mild winters and hot summers (110°+). I just bought a 2022 BMW 740i, 25K miles, with B58 engine, TU1 AFAIK. I'm expecting to drive the car ~4K miles per year and change oil 1x per year. I don't drive the car very hard. I don't know how long I'll have the car...in 5 years, I expect the car to still be at 50K miles or less. Would using Super tech/Costco Dexos oil in this car really make any difference in anything vs BMW LLxxx approved oil? Also, with our mild Winters and hot Summers, is the BMW recommended 0W20 best, or are xxW30 or xx40 more suitable?
Thank you for your opinions.
 
BIGROCCO said:
I've been using Walmart Supertech or Costco full synthetic in Ford and GM cars, in the mfr. recommended viscosity (0W20 or 5W30), for 20 years...OCI 5K miles...no engine problems. I'm in the Phoenix AZ area, so very mild winters and hot summers (110°+). I just bought a 2022 BMW 740i, 25K miles, with B58 engine, TU1 AFAIK. I'm expecting to drive the car ~4K miles per year and change oil 1x per year. I don't drive the car very hard. I don't know how long I'll have the car...in 5 years, I expect the car to still be at 50K miles or less. Would using Super tech/Costco Dexos oil in this car really make any difference in anything vs BMW LLxxx approved oil? Also, with our mild Winters and hot Summers, is the BMW recommended 0W20 best, or are xxW30 or xx40 more suitable?
Thank you for your opinions.
Click to expand...
You've got a lot going on there. SuperTech 0W-20 is not suitable as a replacement for the proper BMW approval. The HT/HS is too low for one thing. That would be a foolish substitution.
 
BIGROCCO said:
I've been using Walmart Supertech or Costco full synthetic in Ford and GM cars, in the mfr. recommended viscosity (0W20 or 5W30), for 20 years...OCI 5K miles...no engine problems. I'm in the Phoenix AZ area, so very mild winters and hot summers (110°+). I just bought a 2022 BMW 740i, 25K miles, with B58 engine, TU1 AFAIK. I'm expecting to drive the car ~4K miles per year and change oil 1x per year. I don't drive the car very hard. I don't know how long I'll have the car...in 5 years, I expect the car to still be at 50K miles or less. Would using Super tech/Costco Dexos oil in this car really make any difference in anything vs BMW LLxxx approved oil? Also, with our mild Winters and hot Summers, is the BMW recommended 0W20 best, or are xxW30 or xx40 more suitable?
Thank you for your opinions.
Click to expand...
Warranties? If yes, get appropriate LL17FE or LL01FE (preferably).
No warranty? Get Mobil 1 0W40 FS, Mobil 1 5W40, Castrol Edge 5W30 European or Castrol Edge 5W40 European in that order at your local Wal Mart.
Make sure it says BMW LL01 in the back.
 
BIGROCCO said:
I've been using Walmart Supertech or Costco full synthetic in Ford and GM cars, in the mfr. recommended viscosity (0W20 or 5W30), for 20 years...OCI 5K miles...no engine problems. I'm in the Phoenix AZ area, so very mild winters and hot summers (110°+). I just bought a 2022 BMW 740i, 25K miles, with B58 engine, TU1 AFAIK. I'm expecting to drive the car ~4K miles per year and change oil 1x per year. I don't drive the car very hard. I don't know how long I'll have the car...in 5 years, I expect the car to still be at 50K miles or less. Would using Super tech/Costco Dexos oil in this car really make any difference in anything vs BMW LLxxx approved oil? Also, with our mild Winters and hot Summers, is the BMW recommended 0W20 best, or are xxW30 or xx40 more suitable?
Thank you for your opinions.
Click to expand...
The min HTHS for LL17Fe+ (0w20) is 2.6cP. If Super Tech 0w20 meets that min you're okay on a short OCI. You can always use LL04 (Mobil 1 ESP 5w30 or Pennzoil Euro L 5w30) or LL01 (Mobil 1 Full Synthetic, Pennzoil Euro, Castrol 0w30 or 0w40) as an alternative. LL04 oils are just thicker versions of the 20 grade. LL01 is a high SAPS version of LL04.

I'm fairly active around the BMW community and haven't see anything suggesting that the 20 grade is inadequate for these B-series engines in daily driving. These engines have oil coolers to help maintain min viscosity.

The maintenance eater on these engines revolve around coolant lines. It's a dual circuit system with a lot of coolant lines.
 
So... I'm not arguing here, but...those who are concerned about Dexos are saying (or BMW is saying) that the camshafts, engine bearings, turbo bearings, rings, or whatever are more stressed or vulnerable to wear in a BMW B58 engine than in a modern GM or Ford 4 or 6 cylinder turbo engine? I think that was actually what I was wondering in the first place. Is that a valid statement? Or maybe it's that the BMW engines are harder on oil so it has to have certain properties to stand up to the conditions and maintain its properties over the long term? I'm sorry if I'm asking dumb questions, but I'm really trying to understand what's different about the BMW engines and why they have different requirements. BTW, I am pretty knowledgeable about cars, and I've done it all, including completely rebuilding many engines...but only domestic ones
 
BIGROCCO said:
So... I'm not arguing here, but...those who are concerned about Dexos are saying (or BMW is saying) that the camshafts, engine bearings, turbo bearings, rings, or whatever are more stressed or vulnerable to wear in a BMW B58 engine than in a modern GM or Ford 4 or 6 cylinder turbo engine? I think that was actually what I was wondering in the first place. Is that a valid statement? Or maybe it's that the BMW engines are harder on oil so it has to have certain properties to stand up to the conditions and maintain its properties over the long term? I'm sorry if I'm asking dumb questions, but I'm really trying to understand what's different about the BMW engines and why they have different requirements. BTW, I am pretty knowledgeable about cars, and I've done it all, including completely rebuilding many engines...but only domestic ones
Click to expand...
The Dexos standards are lower. It's hard to say if the engine is actually harder on the oil, but it would be foolish to penny pinch on oil because these engines and turbos are very expensive. Just use Mobil 1 0W-40, it's LL-01 and LL-01 is BMW TIS allowed for this engine. Edy's list above is perfect. It's barely more expensive.
 
BIGROCCO said:
So... I'm not arguing here, but...those who are concerned about Dexos are saying (or BMW is saying) that the camshafts, engine bearings, turbo bearings, rings, or whatever are more stressed or vulnerable to wear in a BMW B58 engine than in a modern GM or Ford 4 or 6 cylinder turbo engine? I think that was actually what I was wondering in the first place. Is that a valid statement? Or maybe it's that the BMW engines are harder on oil so it has to have certain properties to stand up to the conditions and maintain its properties over the long term? I'm sorry if I'm asking dumb questions, but I'm really trying to understand what's different about the BMW engines and why they have different requirements. BTW, I am pretty knowledgeable about cars, and I've done it all, including completely rebuilding many engines...but only domestic ones
Click to expand...

I don't think anyone really knows. GM sells some high HP cars both in terms of actual HP and HP/Liter of displacement. One thing for certain is that all of these oil certs have long drain intervals in mind and always have.
 
Ok, thx all .. yes, I agree, no big deal on cost, I agree. I guess I was just trying to find a readily available 0W20 oil. So last question, I think: No concerns about using LL-01 0W-40 oil when LL-01FE or LL-14FE+ or LL17FE+ 0W-20 is spec per owner's manual, right?
 
I'm actually at Walmart right now...they don't have Mobil 1 Euro 0w40, but have Mobil 1 Euro LL-01 5w40. Makes no difference to me, especially in hot Phoenix right?
 
BIGROCCO said:
Ok, thx all .. yes, I agree, no big deal on cost, I agree. I guess I was just trying to find a readily available 0W20 oil. So last question, I think: No concerns about using LL-01 0W-40 oil when LL-01FE or LL-14FE+ or LL17FE+ 0W-20 is spec per owner's manual, right?
Click to expand...
No problems using 0W40. 0W20 is specd. for mpg.
As mentioned above, European approvals are more stringent. BMW LL approvals have the most stringent oxidation requirements, and specific timing chain test (you really, REALLY, don’t want to have chain issue on B58).
As for complexity and wear, I would say B58 is probably one of the most reliable if not the most reliable 6cyl turbo engine on the market. But, it does have complicated valvetrain, as all BMW’s last 30yrs. The LL oil spec. has specific valvetrain tests.
 
Last edited:
edyvw said:
[...] Get Mobil 1 0W40 FS, Mobil 1 5W40, Castrol Edge 5W30 European or Castrol Edge 5W40 European in that order at your local Wal Mart.
Make sure it says BMW LL01 in the back.
Click to expand...

Just curious about the order of your list of Walmart oils. Based on my extensive reading of your posts over many years, this list (and order) are a bit different what I expected.

I believe you have said in the past that Castrol Euro 0w-40 is a cut above the 5W-40 due to the base. And, while I know a few years ago you considered Castrol Euro 5w30 (LL, I think?) to be the best Euro oil available, the current version doesn't appear to be anything special-- at least based on the price and specs on the back of the bottle (correct me if I'm wrong on that-- see questions below).

So, I would have expected your ordering of LL-01 oils to be something like:

------------------------------
1) Marginally (but measurably) the best due to better bases:

Mobil 1 0W-40 FS or Castrol 0W-40 Euro

2) Marginally (but measurably) second best due to lower-quality bases:

Mobil 1 5W-40 FS or Castrol 5W-40 Euro

3) Marginally (but probably not measurably) worse than the 5W-40's in second place (above) due to potentially marginally lower HT/HS:

Castrol 5w30 Euro
---------------------------------

Some questions:

--Does my list above correctly summarize what you have historically said was the rank order of Walmart oils? Apologies if it does not!

--Is today's Castrol Euro 5w30 the same (and as good as) the version you used to recommend so highly a few years ago?

--Give they have the same licenses, would you consider both the Valvoline and Quaker State 5W-40 Euros be equivalent to the oils in 2) above?

Thanks in advance-- I've learned a lot from reading your posts!
 
Jim Rogers said:
Just curious about the order of your list of Walmart oils. Based on my extensive reading of your posts over many years, this list (and order) are a bit different what I expected.

I believe you have said in the past that Castrol Euro 0w-40 is a cut above the 5W-40 due to the base. And, while I know a few years ago you considered Castrol Euro 5w30 (LL, I think?) to be the best Euro oil available, the current version doesn't appear to be anything special-- at least based on the price and specs on the back of the bottle (correct me if I'm wrong on that-- see questions below).

So, I would have expected your ordering of LL-01 oils to be something like:

------------------------------
1) Marginally (but measurably) the best due to better bases:

Mobil 1 0W-40 FS or Castrol 0W-40 Euro

2) Marginally (but measurably) second best due to lower-quality bases:

Mobil 1 5W-40 FS or Castrol 5W-40 Euro

3) Marginally (but probably not measurably) worse than the 5W-40's in second place (above) due to potentially marginally lower HT/HS:

Castrol 5w30 Euro
---------------------------------

Some questions:

--Does my list above correctly summarize what you have historically said was the rank order of Walmart oils? Apologies if it does not!

--Is today's Castrol Euro 5w30 the same (and as good as) the version you used to recommend so highly a few years ago?

--Give they have the same licenses, would you consider both the Valvoline and Quaker State 5W-40 Euros be equivalent to the oils in 2) above?

Thanks in advance-- I've learned a lot from reading your posts!
Click to expand...
For your #3 above you might be able to add Mobil 1 Euro 5w30 as a consideration.
 
mitsuman47 said:
For your #3 above you might be able to add Mobil 1 Euro 5w30 as a consideration.
Click to expand...
You may be right, but two things:

1) It's not my list (I don't really have one since I'm not all that knowledgeable). I'm trying to see if I understand @edyvw 's thoughts on relative orders of Walmart-available LL-01 oil quality.

2) I'm not seeing Mobil 1 Euro 5w30 as being available at Walmart, so, while it may be a fine oil, it's automatically excluded.

BTW, I'm a "mitsuman" as well-- I have two Mirages!
 
Thank you everyone...based on your your input, I've concluded that:
1. BMW approval is important...very important...regular Full Synthetic Dexos or whatever is not adequate, even if it's a superior brand like M1 and it will be easy driving and short OCI.
2. Oil that meets the BMW LL-01 standard is fully suitable for my US 2022 B58TU1. Although other, more recent standards such as LL-14FE+ and LL-17FE+ exist and are approved for my car, those standards are not more protective or superior for my car, except perhaps minimally better for gas mileage.
3. Although 0W-20 oil viscosity is recommended by BMW for my car, other viscosities such as xW-30 or xW-40 are not too thick ..they will work just fine.
4. Some brands or formulations of BMW approved oil are preferred, or might cost more or less, but any brand or viscosity BMW approved oil is strongly preferred over any non BMW approved oil.
 
Jim Rogers said:
You may be right, but two things:

1) It's not my list (I don't really have one since I'm not all that knowledgeable). I'm trying to see if I understand @edyvw 's thoughts on relative orders of Walmart-available LL-01 oil quality.

2) I'm not seeing Mobil 1 Euro 5w30 as being available at Walmart, so, while it may be a fine oil, it's automatically excluded.

BTW, I'm a "mitsuman" as well-- I have two Mirages!
Click to expand...
If going online, and cost is not the key, Castrol Edge 0W30 is always my first choice!
 
edyvw said:
If going online, and cost is not the key, Castrol Edge 0W30 is always my first choice!
Click to expand...

Oh, geez-- yes, it was the 0w30 (not the 5w30) that you aways recommended.

Sorry for the confusion!

Still wonder why the Castrol Euro 0W-40 didn't make the list and why the Castrol 5W-40 was in last place.
 
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