What oil viscosity are you using? 10w60/0w40/5w50?

[Shredicus]

Originally Posted by AMG2M3

I have been considering Mobil 5w50. To the few who are running this oil where are you buying it? I believe Napa Auto parts sells it. Are there other major retailers that carry it?

NAPA is where I get mine. They usually run a sale on it around when mobil does their rebate which brings the cost down considerably. Think it goes down to 5.99$/qt. and then add the rebate which is $24 off of 10 quarts and you're looking at under $40 with tax for 10 quarts of this stuff. Pretty solid deal

specs for this oil:

Viscosity, cSt ASTM D445
@ 40ºC 104.3
@ 100ºC 17.1
Viscosity Index 179
Sulfated Ash, wt% (ASTM D874) 1.34
Phosphorous, wt% (ASTM D4951) 0.1
Flash Point, ºC (ASTM D92) 232
Pour point, ºC -42
Density @ 15.6 ºC g/ml, (ASTM D4052) 0.8499
Total Base Number (ASTM D2896) 12.6
MRV at -35ºC, cP (ASTM D4684) 24,800
HTHS Viscosity, mPa•s @ 150ºC (ASTM D4683) 4.4

HTHS of 4.4 is what castrol TWS is known to shear down to and stabilize at(starts at 5.2 and shears notoriously quickly). With the new FS X2 formulation of mobil1 using LNG as its base oil its probably not going to shear much below 4.0 which gives it a great compromise of cold flow characteristics and high temp protection.

[6ixSpd]

Canola oil.

[lan4]

Redline 10W60, now Liqui Moly 10W60 last 2 oil changes only 33K miles. Change every 3K miles. Dive mostly spring-summer-fall in NJ, very little cold winter temp use.

[e92m3jb]

what would you guys say is the best 10w60 oil right now for daily driving/weekend track?

[E93M3ofSFL]

Originally Posted by e92m3jb

what would you guys say is the best 10w60 oil right now for daily driving/weekend track?

There is a thread related to a ticking noise some people blame it to Liqui Moly 10w60 which is what we used a couple of days ago in our first oil change ... my mechanic told me that even BMW mechanic trainers even use this stuff and that is one of the best out there ...
I believe there is no proof yet that this oil is causing this issue ...
No weird noises yet from our engine 2008 e93 63k mi , we purchased it a week ago ...

I might switch to Castrol 10w60 next time ...

[GSTE34]

I switched from 10w60 to 0w-40 and I do hear the valve tick now, live in SoCal doing this in the mean time till I replace my RB then I will return to 10w-60

[Shredicus]

Next fill is going to be amsoil 5w50. Should be a perfect compromise between HTHS and cold flow

[STR8-6IX]

Insane, can't believe there are users on here running 0w40 in a motor specced for 10w60. Whoever is doing this is actually stupid..

[pbonsalb]

I have run 0W40 for about 3 years on my year round street driven 08E90M3. I ran 10W60 before that. I'll redo the bearings again in a couple of years and see whether they did better with 0W40 or not.

[GT3fan]

Just changed oil w/ Mobil 1 5w50. All is good so far.

I'm curious if more of the 0w40 owners would try this viscosity if it was more readily available from various retailers?

[Jay-K]

10w-60 tws castrol
Oem ftw

[pbonsalb]

Originally Posted by AMG2M3

Just changed oil w/ Mobil 1 5w50. All is good so far.

I'm curious if more of the 0w40 owners would try this viscosity if it was more readily available from various retailers?

I would try a 5W50. It is easy enough to get by ordering it or searching around. Amsoil, Mobil 1, Redline, Ford, Quaker State, Castrol, AC Delco, Amalie, Torco, Ravenal, Total and others make it. I put 0W40 in when I changed the rod bearings in 2014 and have been using it since, although last oil change I went from Mobil 1 to Castrol Edge because I read that Mobil changed its formula a while ago and was no longer BMW approved.

Maybe I will look for and try a 5W50 next time. If I tracked the car or lived in a very hot area, I would not use 0W40, but I have no worries for my driving -- I would be more worried about using 10W60.

[SYT_Shadow]

I've used the OEM reco for years and years.

That includes the E46M that I put 100k miles on and continued to double track until it had 170k total miles

I don't see any good reason to move to something else

[pbonsalb]

You think it is fine for 0 degree F starts during New England winters?

[Solo_M_Tech]

Rod bearings done at 89k miles, Castrol 10w60 it's whole life before that and LM 10w60 after that. Im at 106 now and my oil reports are always clean. Engine warms up quick and I've never had a temp related problem at the track. ( I live in central FL).

I don't understand 0w40 for anyone in warm climate.

[TrAcK TRaP]

https://www.walmart.com/ip/Mobil-1-0...&wl13=&veh=sem

[TrAcK TRaP]

5 qt 0W-40 M1 is cheaper than oil filter and everyone is ok to use it on M cars? You'll be fine for couple years guys no worries let the next owner deal with it after you sell it well done..

[TrAcK TRaP]

Only $22.88 what a great saving..

[kyrix1st]

Been using different variants of RL. Will send all the samples at once to BSL after another track day at Suzuka. Looking forward to it.

[pbonsalb]

Originally Posted by TrAcK TRaP

Only $22.88 what a great saving..

I agree Mobil 1 is a great oil and reasonably priced compared to BMW Shell 10W60. Even cheaper with the Mobil 1 rebate. I have been using Mobil 1 0W40 for 4 years. Last change was Rotella 5W40 but will probably return to Mobil 1.

[G80indy]

Redline cocktail:
10w-60 (6)
5w-50 (3)
=
8w-55


;-)

[jimbob123]

I've just changed mine with Miller's cfs 5w40 nt+ .I certainly wouldn't go back to 10w60 with the clearance issues. I only do about 3000 miles a year and change oil annually.