Castrol Edge SPT 5w40 v M1 0W40; 2004 Porsche 911

[sds911]

Blackstone UOA Results; 2004 Porsche 911 40th Anniversary edition 58,365 on odometer for Castrol Edge SPT 5W40 at 3675 miles for oil change interval; Mobil 1 0W40 at 48,618 on odometer and 3700 oil change interval

Code:




Castrol Edge SPT 5W40 Mobil 1 0W40





AL 3 5

CHR 1 1

IRON 8 8

Copper 7 9

Lead 0 0

Tin 2 2

Moly 5 90

Nickel 0 0

Manganese 0 0

Silver 0 0

Titanium 0 2

Potassium 2 5

Boron 42 197

Silicon 3 4

Sodium 4 5

CA 2339 3198

Magnesium 21 24

Phosphorus 794 885

Zinc 898 1012

Barium 0 0



SUS VISC@210 66.6 66.5

cST@100 12.05 12.02

Flashpt 415 415

Fuel
Insolubles .2 .2

TBN 5.3 7.1

 

[chubbs1]

Looks like both oils served you very well. now you know just to pick up whichever one is cheaper and run it out a little further. Nice car!

 

[sds911]

Yep. I'll go a bit longer on the next one and I switched back to Mobil 0W40 for the coming winter.

 

[Brybo86]

Originally Posted By: sds911
Yep. a bit longer on the next one.

+1

 

[Clevy]

Originally Posted By: chubbs1
Looks like both oils served you very well. now you know just to pick up whichever one is cheaper and run it out a little further. Nice car!



+1. I think it was a smart idea running them both. Now you've got actual data on how much longer you can run the oil as well as data on wear metals shed,which in both examples looked pretty good.
Wise investment. You've acquired data,which now instills confidence as far as comparative wear and how long you can run it.
You've now got options that have proven themselves in your application. Buy whichever is on sale when you are changing the oil and know both are quality products.
I found it interesting how different the 2 oils additive packages are in relation to their use of friction modifiers and anti-wear.
I wonder what we aren't seeing in the castrol example since,to me anyways,the M1 looks stronger on paper.