BREAKING: GM is officially recalling the L87

[blanchard7684]

On a second look that could be cooked oil. Seen that in some industrial failures… in other words Dow stream of the bearing seizure.

 

[GMCnewbee]

Vlad, very sorry to hear about your engine. I have a 2022 Denali also. That picture on the right looks like there is water in the oil. Thanks for posting and let us know what you find in the tear down.

 

[Vladimir2306]

Vlad, very sorry to hear about your engine. I have a 2022 Denali also. That picture on the right looks like there is water in the oil. Thanks for posting and let us know what you find in the tear down.

I will write a separate topic) there will be a lot of observations that break previous hypotheses))

 

[ENTX]

Sorry to hear about your engine Vladimir. Can you share more details on what exactly the car did when that happened: did it kinda completely lock up the engine/transmission (as if you slammed on the brakes) or was it more like switching into neutral and the car just coasted until the complete stop? The latter is bad but the former could potentially be absolutely catastrophic!

 

[vcode]

I’m going with ac Delco dexos 5w30 on 4000 mile or less oci.

I’m documenting my oil changes with pictures.

The original design for this bearing was 5w30.

The design hasn’t changed. But the oil spec did.

Yeah, 5W30 on dino oil. At least that is what my 2010 used. I can't imagine that is much better than 0W20 synthetic.

 

[blanchard7684]

Yeah, 5W30 on dino oil. At least that is what my 2010 used. I can't imagine that is much better than 0W20 synthetic.

It is full synthetic.

There is a small but good improvement especially on hths rating.

 

[DenaliCountry]

Hello everyone, a week ago I talked about my 6.2 engine with a mileage of 75,000 miles. On which we cut the filter every maintenance and there were no chips, no metal, no wear products in it. And yesterday my engine stopped. The oil was fresh, the mileage was about 1000 miles. Driving was on the highway at 95 mph, the oil pressure was high. So it was a highway, then there could be no fuel in the oil. The engine lost momentum and the car shut down completely at 95 mph, I stopped on the side of the road. I took out the oil dipstick, the level was full, but the dipstick was so hot that I immediately got a burn through the napkin. I think the oil was 200 degrees C. In general, I will tell you everything in a separate entry when we open the engine. And now our masters are confused, because this has never happened before, my case greatly violates many existing hypotheses. And about the connecting rod liners too, if they were to blame, there would have been chips earlier, and they were not there 1000 miles ago. Everything happened so quickly, without a rumble.

Sorry to hear of your issues. Mine didn't show any signs either prior to letting go. PITA all the way around.

 

[Vladimir2306]

Yukon 2022 6.2 engine died at 75,000 miles.

Hello everyone, I'll tell you a little background. I have a 2022 Yukon with a 6.2-liter engine that I drive very fast, it's normal for me to drive on the highway at 100-110 miles per hour for several hours in a row, or ride with a boat or jet ski on a trailer at 90-95 miles per hour. My oil is...

www.tahoeyukonforum.com

Have fun reading))

 

[Scarey]

X

 

[DontTaseMeBro]

The engine temperature sensor will replace the coolant temperature, not the oil

Ah right right. Duh to me.