Mobil1 10w40, 8292 mi, 2013 Chevy Equinox 2.4l 4cy

[OVERKILL]

Originally Posted By: BearZDefect
Thank you for the explanation. It sounds like this timing chain failure mode is really a timing chain guide failure.


I think the chain prematurely stretches and then "slaps" the guides, which can break off the nylon.

 

[BearZDefect]

My goodness. These cascading failures.

Thanks again. Always interesting to learn.

 

[gregk24]

By the looks of this UOA thicker is not always better. I would use a thick 0w30 or 5w30, at the most maybe M1 0w40 as other have mentioned. Change at 5K.

 

[Greasymechtech]

10w40 is a great oil. Not best for winter cool weather use.

The 0w40 and 5w40 are some options for better cold oil pumping flow.

I wouldn't even bother with GM oil recommendation after seeing some of their DI fuel dilution engine failures. Reprogramming the OLM to shorten the OCI is not a fix. Stick with the 40 grade synthetics. If there is a GM engineer reading this, consider using fuel diluted oil for engine R&D testing.

The wear here, even that aluminum, is nothing to worry about.

 

[wemay]

Just my opinion,

In a GDi, dilution will win the battle vs any oil. I wouldn't run anything past 7500 miles in that or most other GDi engines, and even that may be a stretch.

*if the dilution coincides with high wear matals.

 

[webfors]

Yikes, that oil is nuked.

Decrease the OCI, go with regular dino, save your money, dump the car at the end of the lease.

 

[Oil Changer]

Use 5W-30 Dexos and run the OLM to 0. If you're going to waste money on an UOA, that is the one I'd want to see.

Originally Posted By: webfors
Yikes, that oil is nuked.

Decrease the OCI, go with regular dino, save your money, dump the car at the end of the lease.

 

[Shannow]

Actually, I'd move $10-15 across via paypal to see a Chev recommended oil see out it's full OLM OCI for comparison in this case.

Anyone else up for it ?

 

[rbarrios]

here ya go...


2003 Trailblazer. 4.2L I6.
0% OLM- 11,039 miles.
5W-30 Valvoline Conventional Dino - met GM6094 spec.

http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=1906565




2013 Equinox 3.6L V6.
0% OLM- 7,210 miles.
PP-Dexos approved

http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3337895/2013_Equinox_3.6L_Penz_Platinu

 

[Revving2Redline]

Maybe try qsud 10w30 or pu 10w30. Both have low noack. If fuel dilution is high try and change your stop and go driving or better yet hit the highway.