Whos running Mobil 1 0w-40?

[dparm]

Originally Posted by kawasaki00

The main bearing problem is not in the s65, it is a problem with newer cars with the stop/start feature. Many cars in our dealerships with short blocks replaced with mains knocked out.

First I've heard of any relation to the auto start/stop. Can you elaborate?

[kawasaki00]

Originally Posted by dparm

First I've heard of any relation to the auto start/stop. Can you elaborate?

Every time the engine is restarted it turns over with no oil pressure for a short amount of time, every time it shuts off the turbo continues to spin beyond when the oil pressure has gone away.
A few cars in our area from the dealership had the function checked because there were 328 cars with new short blocks being needed already. The function had activated equivalent to 9 years worth of starting the car and the car was only 1.5 years old.
The first year, not sure when they switched it had the function ON by default. In the later years it is only active in ECO mode and not normal or sport.
That is the dumbest feature ever in a car, it serves no purpose but to wear parts out. In a perfect world on some test bench it saves gas but in the real world it saves nothing.
The x5 v8 has a similar problem because of where things are mounted. The parts on the top end of the engine are taking a beating due to the stop/start option.
For quite some time the dealership was turning the feature off on all cars and then they got yelled at so now it is a free option upon the customer request.

[Flying Ace]

^wow. first hand account that the Start/Stop feature has disproven the lab tests for internal wear...

[G80indy]

Yep
My gut knew it (auto SS) would be wrought with aggravated wear and tear.
Turned off from day one in the '13 e92

[Lone Star M3]

Originally Posted by MFKN3

Redline 5w40 and 10w40 look almost identical on paper

I'm probably going to give the RL 10w40 a try this week, as it looks a bit better than the M1.

Have you made the change to Redline 10w/40. I have been contemplating using this oil and would appreciate any feelings/thoughts. Thank You

[MFKN3]

Originally Posted by essdb1

Have you made the change to Redline 10w/40. I have been contemplating using this oil and would appreciate any feelings/thoughts. Thank You

I have it sitting here next to me.

I will finish wiring my oil pressure gauge in next day or two - I want to see what pressures I get with current TWS. Then I will do the oil change later this week/weekend and let you know.

I've spoken to another engine builder who also recommended 10w40 over 10w60

[Z K]

Originally Posted by Z K

I had a few left over quarts of Redline 10w60 so I stuck it in to use it up. No other reason - I wasn't going for a blend. I am now running 100% 0w40 now after my oil change.

I just sent in the sample to Blackstone today. Very curious to see the oil analysis especially since I ran a track day in 100+ degree heat on this sample. I'm sure the oil got worked hard.

Alright .. it's been a few weeks since I mailed it in. How long does Blackstone take to do a oil analysis?

[marksae]

Mine only took about a week or so after I mailed it in. Once they received it, they processed my sample in 2-3 days.

[gatorfast]

Originally Posted by Z K

Alright .. it's been a few weeks since I mailed it in. How long does Blackstone take to do a oil analysis?

Are you sure it was delivered? Blackstone usually runs the sample the same day it arrives.

[Z K]

I just got the report back today.

Here it is below. Looks like no issues. 4000 miles with a half dozen autocross events, a track day at over 100 degrees F and daily commuting. Mobil 1 0w40 is holding up great (with about 2 quarts of REDLINE 10w60 mixed).

[marksae]

That's a good report! It's encouraging for people who have switched to 0W40 and wondered if it can hold up to track days.

[thekurgan]

This is the highest moly count I've seen in a UOA.

[Z K]

Originally Posted by thekurgan

This is the highest moly count I've seen in a UOA.

It could be a big ingredient in Redline 10w60.

[thekurgan]

Originally Posted by Z K

It could be a big ingredient in Redline 10w60.

Oh, shit, I was thinking TWS, lol. Thanks, that's probably it, lots of Redline's line has moly.

[gatorfast]

Reading through this thread and the UOA thread it got me thinking...is anyone running a M1 0w40 and 15w50 mix? It's been mentioned a few times in this thread but is anyone doing it?

Was thinking that adding a few qts of the 15w50, maybe a 75/25% mix 0w40 to 15w50, would add some protection at operating temp while still flowing very well during cold starts. Perhaps this could reduce the higher iron ppm count we tend to see in 0w40 UOAs.

[apecush]

Originally Posted by gatorfast

Reading through this thread and the UOA thread it got me thinking...is anyone running a M1 0w40 and 15w50 mix? It's been mentioned a few times in this thread but is anyone doing it?

Was thinking that adding a few qts of the 15w50, maybe a 75/25% mix 0w40 to 15w50, would add some protection at operating temp while still flowing very well during cold starts. Perhaps this could reduce the higher iron ppm count we tend to see in 0w40 UOAs.

Why not try Redline 5W50 and avoid the whole mixing thing?

[kawasaki00]

Originally Posted by gatorfast

Reading through this thread and the UOA thread it got me thinking...is anyone running a M1 0w40 and 15w50 mix? It's been mentioned a few times in this thread but is anyone doing it?

Was thinking that adding a few qts of the 15w50, maybe a 75/25% mix 0w40 to 15w50, would add some protection at operating temp while still flowing very well during cold starts. Perhaps this could reduce the higher iron ppm count we tend to see in 0w40 UOAs.

A few S/C guys are running it, 5qt 0-40 and 4 qt 15-50. Wont give out names at their request but it has been proven for over a year now. Pm me is you seek more info on that.

Originally Posted by apecush

Why not try Redline 5W50 and avoid the whole mixing thing?

All 5-50s on the market are a compromise, they have a higher level of friction modifiers to make the swing that great. Better off sticking with a 15-50 and mixing it, or some 10-60.
It is not junk, but there are better choices.

[Flying Ace]

ZK, fantastic results. Looks like you'll be sleeping well at night!

Next up, me with a side-by-side-by-side of old TWS and Castrol Edge Pro and with M1 for comparison.

[Lone Star M3]

Originally Posted by MFKN3

I have it sitting here next to me.

I will finish wiring my oil pressure gauge in next day or two - I want to see what pressures I get with current TWS. Then I will do the oil change later this week/weekend and let you know.

I've spoken to another engine builder who also recommended 10w40 over 10w60

Thank you very much. Keep us informed.

[G80indy]

Originally Posted by Flying Ace

ZK, fantastic results. Looks like you'll be sleeping well at night!

Next up, me with a side-by-side-by-side of old TWS and Castrol Edge Pro and with M1 for comparison.

Waiting patiently




Is it ready yet ?

[dparm]

Originally Posted by gatorfast

Reading through this thread and the UOA thread it got me thinking...is anyone running a M1 0w40 and 15w50 mix? It's been mentioned a few times in this thread but is anyone doing it?

Was thinking that adding a few qts of the 15w50, maybe a 75/25% mix 0w40 to 15w50, would add some protection at operating temp while still flowing very well during cold starts. Perhaps this could reduce the higher iron ppm count we tend to see in 0w40 UOAs.

Why do you think you need to do that? What's wrong with straight M1 0w40 or TWS?

[gatorfast]

Originally Posted by dparm

Why do you think you need to do that? What's wrong with straight M1 0w40 or TWS?

I'm not saying I, or anyone, needs to do this. Just trying to start a conversation by posing a question.

Thought maybe a combination such as this would provide better operating temp protection while still providing excellent cold start flow and was curious to hear opinions from some of the experts on here.