Oz M1 15W-50 after 6,000km in a worked L67

[Shannow]

Lead 6
Iron 8
Aluminium 4
Copper 13
Chrome 0
Tin 2
Nickel 0
Silver 0
Titanium 0

Silicon 28
Sodium 18
Vanadium 0

Magnesium 17
Zinc 1878
Molybdenum 65
Calcium 2877
Phosphorus 996
Boron 148
Barium 0

TBN not done
TAN 0
Fuel 0
Water VI 147
Visc 100 17.3
Visc 40 129

Soot 12
Glycol 0
Water 0
oxidation 5
nitration 6
sulfation 9

edit base engine has 285,000km on the clock (177k miles)

 

[Brons2]

queue up the "thicker is better" crowd!

 

[chubbs1]

Oxidation/nitration and sulfation are nil. Amazing to me

 

[Shannow]

Sorry about the title, it's not an L67, but naturally aspirated at 200kW.

Guy programmes memcals, and takes out the ultra-lean cruise...still lean, but not 19:1 lean.

 

[Lead Shoes]

So this is the L36 (3.8 series II N/A)???

That is a really good UOA for 2 weight over the recommendation, I would use 10w40 HM before 15w50 in that car though...

So I have to ask... Why the 50wt?? oil burning?? or are you the chairman of the thicker is better crowd?

 

[OVERKILL]

Originally Posted By: Brenden
So this is the L36 (3.8 series II N/A)???

That is a really good UOA for 2 weight over the recommendation, I would use 10w40 HM before 15w50 in that car though...

So I have to ask... Why the 50wt?? oil burning?? or are you the chairman of the thicker is better crowd?


He's in Australia.

 

[ammolab]

Originally Posted By: OVERK1LL
Originally Posted By: Brenden
So this is the L36 (3.8 series II N/A)???

That is a really good UOA for 2 weight over the recommendation, I would use 10w40 HM before 15w50 in that car though...

So I have to ask... Why the 50wt?? oil burning?? or are you the chairman of the thicker is better crowd?


He's in Australia.


Where even Hondas run 10W-30, 5W-40 as recommended by the manual.

 

[Lead Shoes]

Oh...I never understood why in the USA a car will need 30wt, but the same car will need 40wt or 50wt across the ocean...

 

[Clevy]

Originally Posted By: Brenden
Oh...I never understood why in the USA a car will need 30wt, but the same car will need 40wt or 50wt across the ocean...

CAFE

 

[Shannow]

Originally Posted By: Brenden
So this is the L36 (3.8 series II N/A)???

That is a really good UOA for 2 weight over the recommendation, I would use 10w40 HM before 15w50 in that car though...

So I have to ask... Why the 50wt?? oil burning?? or are you the chairman of the thicker is better crowd?


GMs recommendation as per the owner's manual for that engine is 20w-50, with 15W-40 in snow/cold conditions.

 

[Lead Shoes]

That seems like some thick oil for that v6, but apparently it is doing well.

I also made that post before I knew you were in AU, otherwise I would not have posted because they request heavier oil to be put in.