What oil?

[0-60motorsports]

Well i ended up throwing in the towel today, I found NOS Castrol Supercar 10w60 ( old label ) at an auto parts store, 15 minutes south from where i live, Bottles are date stamped 2023, Made in Germany

Nice! I just buy them from Audi in FL whenever im over in the USA LOL.

[BL92]

Well i ended up throwing in the towel today, I found NOS Castrol Supercar 10w60 ( old label ) at an auto parts store, 15 minutes south from where i live, Bottles are date stamped 2023, Made in Germany

[bhoom_S54]

I used Motul 10w60 here In Oregon. Works for me

[oceansize]

Very true.

Could you explain how this maps onto the oil discussion? Are you saying BMW's recommendations aren't worth more than the aftermarket's (or our own opinions) because their engineering was obviously compromised by cost-cutting?

Can't, not qualified to talk about oil at any meaningful level. Not even the least little bit. See bottle, open bottle, pour contents of bottle in little hole.

[IamFODI]

I don't care about oil and I'm dumb so I just use 10w-60, but I will say every time someone brings up engineers I always think about their structural or mechanical ones who developed our RACP, exhaust hub tabs, and rod bearing (early pre LCI cars, and of course BMW blamed manufacturing, which may have been true). There is engineering and then there is engineering within the corporate arena and sometimes, well..... lol.

Very true.

Could you explain how this maps onto the oil discussion? Are you saying BMW's recommendations aren't worth more than the aftermarket's (or our own opinions) because their engineering was obviously compromised by cost-cutting?

[digger]

every time someone brings up engineers I always think about their structural or mechanical ones who developed our RACP, exhaust hub tabs, and rod bearing (early pre LCI cars, and of course BMW blamed manufacturing, which may have been true). There is engineering and then there is engineering within the corporate arena and sometimes, well..... lol.

My sentiments exactly.

[0-60motorsports]

After my Next oil change of Castrol Supercar i'll be switching to MOTUL 10w60 as its easily locally available where i have to import the Castrol.

[lemoose]

tl;dw but those recommendations take into remain consistent given higher piston speeds/loads across?

[oceansize]

I don't care about oil and I'm dumb so I just use 10w-60, but I will say every time someone brings up engineers I always think about their structural or mechanical ones who developed our RACP, exhaust hub tabs, and rod bearing (early pre LCI cars, and of course BMW blamed manufacturing, which may have been true). There is engineering and then there is engineering within the corporate arena and sometimes, well..... lol.

[IamFODI]

Not following either of bmw m or whoever came up with other guide blindly / as a blanket rule

We are blind.

[digger]

Option 3 being?

Not following either of bmw m or whoever came up with other guide blindly / as a blanket rule

[IamFODI]

How about option 3 that not following 1 or 2 blindly

Option 3 being?

[digger]

Two possibilities here. Either

1. These guidelines show that BMW M's choice of viscosity grade was way off base, implying that M's engineers were unaware of this longstanding industry-standard knowledge; or

2. The M division knew something we don't.

Which seems more likely to you?

How about option 3 that not following 1 or 2 blindly

[IamFODI]

More salt on the wounds, Sorry guys lol


My ACL STD, measured at .002



Here are some recommended rod bearing oil clearances for various oil viscosities:

.0015 to .0018 for 5W-20 or 20W

.002 to .0024 for 5W-30 or 30W

.0025 to .0029 for 10W-40 or 40W

.0030 to .004 for 20W-50 or 50W

.0041 to .005 for 10W-60 or 60W



Video below


https://www.youtube.com/watch?v=aB-lf4kokSQ

Two possibilities here. Either

1. These guidelines show that BMW M's choice of viscosity grade was way off base, implying that M's engineers were unaware of this longstanding industry-standard knowledge; or

2. The M division knew something we don't.

Which seems more likely to you?

[BL92]

More salt on the wounds, Sorry guys lol


My ACL STD, measured at .002



Here are some recommended rod bearing oil clearances for various oil viscosities:

.0015 to .0018 for 5W-20 or 20W

.002 to .0024 for 5W-30 or 30W

.0025 to .0029 for 10W-40 or 40W

.0030 to .004 for 20W-50 or 50W

.0041 to .005 for 10W-60 or 60W



Video below