[F32Fleet]

Originally Posted by Doug Dimmadome

A lot going on in this thread and my next oil change is almost due. I live in Central Texas so its usually pretty warm all year around. Still under warranty, I drive a lot of highway but I'll do a fair amount of aggressive driving when I get the chance. Wondering if I should change from 0w20 to 0w30 or 5w30. I usually get pennzoil ultra platinum or the liquimoly. What do yall think?

For daily driving grade is irrelevant. LL01/LL04 oils will be more common at retail stores otherwise hit the dealer.

[edycol]

Originally Posted by F32Fleet

For daily driving grade is irrelevant. LL01/LL04 oils will be more common at retail stores otherwise hit the dealer.

HTHS is they key. In N55 minimum 3.5cp HTHS (High temperature high shear) should be used although BMW moved that down to 3cp using LL01 FE. That is IMO when issues with rod bearings started.
N55 is older generation. So new LL01 and LL04 are not that relevant (for N20 they are). One can use MB229.5 oils if available as MB229.5 is anyway more stringent.
N55? Best bet is Castrol 0W40.
Under no circumstances 0W20 should be used in N55.

[F32Fleet]

Originally Posted by edycol

HTHS is they key. In N55 minimum 3.5cp HTHS (High temperature high shear) should be used although BMW moved that down to 3cp using LL01 FE. That is IMO when issues with rod bearings started.
N55 is older generation. So new LL01 and LL04 are not that relevant (for N20 they are). One can use MB229.5 oils if available as MB229.5 is anyway more stringent.
N55? Best bet is Castrol 0W40.
Under no circumstances 0W20 should be used in N55.

I think the poster has the B-series since 5w20 was mentioned but ya HTHS >3.5 for N55

[edycol]

Originally Posted by F32Fleet

I think the poster has the B-series since 5w20 was mentioned but ya HTHS >3.5 for N55

I would tun HTHS 3.5 and above oils in B series too. They run it in Europe.

[schernov]

I have a bunch of M1 5w30 ESP oil left from using it in a Porsche Cayenne

Acea c2/c3, api sa/sn
Porsche c30/ MB 229.31/229.51/229.52 rated

Thoughts about using it in b58?

Thanks

[52172]

Originally Posted by schernov

I have a bunch of M1 5w30 ESP oil left from using it in a Porsche Cayenne

Acea c2/c3, api sa/sn
Porsche c30/ MB 229.31/229.51/229.52 rated

Thoughts about using it in b58?

Thanks

Id say go for it it’s an excellent oil.

[52172]

Originally Posted by edycol

HTHS is they key. In N55 minimum 3.5cp HTHS (High temperature high shear) should be used although BMW moved that down to 3cp using LL01 FE. That is IMO when issues with rod bearings started.
N55 is older generation. So new LL01 and LL04 are not that relevant (for N20 they are). One can use MB229.5 oils if available as MB229.5 is anyway more stringent.
N55? Best bet is Castrol 0W40.
Under no circumstances 0W20 should be used in N55.

0-40 is my go to. I run it in my ALH TDI too and am at 480k miles and motor still runs strong at 26lbs boost.

[F32Fleet]

Originally Posted by schernov

I have a bunch of M1 5w30 ESP oil left from using it in a Porsche Cayenne

Acea c2/c3, api sa/sn
Porsche c30/ MB 229.31/229.51/229.52 rated

Thoughts about using it in b58?

Thanks

Perfect oil.

I used it in my 335d years ago.

[joshijosh031]

Can't quite figure out which Liqui Moly Oil I should use for my 335i. Been looking at https://www.mlperformance.co.uk/coll...-moly?&view=ls and there are many options for the 5W-30 oil I'm looking for. Thoughts?

[Billfitz]

Read the thread. Or use this: https://www.liqui-moly.com/en/us/ser...101/USA/ENG/1/

[thejeremyman9]

Originally Posted by joshijosh031

Can't quite figure out which Liqui Moly Oil I should use for my 335i. Been looking at https://www.mlperformance.co.uk/coll...-moly?&view=ls and there are many options for the 5W-30 oil I'm looking for. Thoughts?

FCP Euro, 5-40 LW kit, pay once and free oil changes for life...

[edycol]

Originally Posted by joshijosh031

Can't quite figure out which Liqui Moly Oil I should use for my 335i. Been looking at https://www.mlperformance.co.uk/coll...y?&view=ls and there are many options for the 5W-30 oil I'm looking for. Thoughts?

Use Castrol Edge 0W40, Pennzoil Platinum Euro 5W40. Both better than anything LM.

[F87source]

Originally Posted by edycol

Use Castrol Edge 0W40, Pennzoil Platinum Euro 5W40. Both better than anything LM.

+1

If you look at the UOA PPE 5w40 has more moly additive than LM (literally some LM products don't even have moly) LOL!

Overall just like edy said, those two oils have way better base stocks, better additives etc compared to anything LM sells.

[alohasurftoad]

Originally Posted by joshijosh031

Can't quite figure out which Liqui Moly Oil I should use for my 335i. Been looking at 5W-30. Thoughts?

just get this...https://www.walmart.com/ip/Pennzoil-...uart/495194903

[J555]

Today, I booked my next oil change by the best local independent BMW service, and they asked what oil I want (as they do literally all brands available on the market). I am surprised by their recommendation of LiquiMoly Molygen 5w50 as the absolutely best for tuned B58 (the second recommended option is Ravenol 5w40). While I trust them (they build race engines, and entire cars), I do not see many people running 5w50 spec... Any suggestions, please?

[F87source]

Originally Posted by J555

Today, I booked my next oil change by the best local independent BMW service, and they asked what oil I want (as they do literally all brands available on the market). I am surprised by their recommendation of LiquiMoly Molygen 5w50 as the absolutely best for tuned B58 (the second recommended option is Ravenol 5w40). While I trust them (they build race engines, and entire cars), I do not see many people running 5w50 spec... Any suggestions, please?

I suspect they say that because they're a liquidnoly dealer, and that's the oil they sell and make the most margins on. This was the case with escort radar back in the day, where dealers used to recommend them over the competition even though performance was no where near the top, and they did this because escort detectors had the most profit margins (this example doesn't apply today because escort really upped their game and I'm impressed with their new detectors), I suspect the same is true with liquidnoly. Because if you look at oil specs liquid moly isn't even close to something like Pennzoil, even their molygen oil doesn't have as much moly as Pennzoil. So imo your shop is trying to make a buck as is all shops, they're not screwing you as in selling you crap oil, but it's not the best you could get.


So imo i'd go to Walmart and pick up an ll01, Porsche a40, and mb 229.5 approved oil and that would be better than pretty much anything liquid moly sells that has the same ratings. So your choices would be PPE 5w40, qse 5w40, Valvoline 5w40, motul xcess gen 2 5w40, and Castrol 0w40 and 0w40 if you don't need ll01.


5w50 is too thick imo, for track use maybe but too thick for everyday use.

[J555]

Originally Posted by F87source

I suspect they say that because they're a liquidnoly dealer, and that's the oil they sell and make the most margins on.

Thanks for your comments! 100% sure that's not the reason. They are not a dealer of any brand, and they do offer any oil available on the market.

Originally Posted by F87source

5w50 is too thick imo, for track use maybe but too thick for everyday use.

That's what surprised me, as I think 5w40 is currently the viscosity suggested by most of the people for tuned B58...?

[F87source]

Originally Posted by J555

Thanks for your comments! 100% sure that's not the reason. They are not a dealer of any brand, and they do offer any oil available on the market.

That's what surprised me, as I think 5w40 is currently the viscosity suggested by most of the people for tuned B58...?

If they sell liquidmoly then they're a liquimoly dealer. Sure they may also be a dealer for other brands too, but liquimoly likely has the biggest margins so that's why they're selling it and pushing it so hard. Because if we go by performance liquimoly isn't even close to PPE for instance - and PPE is 1/3 the price. So imo there's really no other explaination on why one would choose lm over PPE, imo it's likely due to the advertising and larger margins.

[edycol]

Originally Posted by J555

Thanks for your comments! 100% sure that's not the reason. They are not a dealer of any brand, and they do offer any oil available on the market.

That's what surprised me, as I think 5w40 is currently the viscosity suggested by most of the people for tuned B58...?

You can run PPE 5W40 in tuned or regular B58.
What oil you need is determined by oil temperatures and dilution.
If there is high fuel dilution, there is a case to be made for thicker oil. But if it need 5W50, Mobil1 5W50 FS would be my choice, and definitely not Liqui Moly.
But I highly doubt you need it. Golden rule of lubrication is: as thin as possible as thick is necessary!

[sspade]

How similar are Mobil 1 0W40 and Castrol 0W40 ?

I've run both over the past few years and noticed no difference but wondering if I should be leaning towards one or the other for a particular reason, going forward.

[edycol]

Originally Posted by sspade

How similar are Mobil 1 0W40 and Castrol 0W40 ?

I've run both over the past few years and noticed no difference but wondering if I should be leaning towards one or the other for a particular reason, going forward.

There is new API SP Castrol Edge 0W40. Apparently it has LL01. Cannot say anything about it, but pour point increased which could mean less PAO.
IMO Castrol was bit more suitable for DI engines. Mobil1 is additive monster! It is very high SAPS and it is kind of old fashioned oil for worst conditions. Castrol is very similar, just bit less SAPS.

[J555]

Originally Posted by edycol

You can run PPE 5W40 in tuned or regular B58.
What oil you need is determined by oil temperatures and dilution.
If there is high fuel dilution, there is a case to be made for thicker oil. But if it need 5W50, Mobil1 5W50 FS would be my choice, and definitely not Liqui Moly.
But I highly doubt you need it. Golden rule of lubrication is: as thin as possible as thick is necessary!

Thank you for your comment! I did some research on used oil analysis in B58, and decided for Ravenol RUP Racing Ultra Performance 5W40. While I didn't expect any subjective change, I am shocked how buttery smooth the engine runs with this oil.