New Engine Being Installed

[FormerTaco]

Went in a few weeks ago for my scope test, I "passed" the official test. I had been going in for the last 6 months or so though, for oil consumption monitoring. My engine was burning oil, so every 1k miles I would go to my dealership, or if traveling, to a local dealership and have them log my oil level, mileage, and top up oil. My dealership service center saw the issues and were awesome, they pushed GM to replace my engine due to oil consumption issues, approved. I was told it may take 2 months to get engine delivered, it arrived 2 weeks later, and a few days after that I dropped my truck off. They gave me a loaner, and the day after I dropped it off they already have it on the lift. Fingers crossed. Anyone have any advice on what is needed to break in these new engines?

 

[anuswax]

…Anyone have any advice on what is needed to break in these new engines?

Ya need to feed it…

 

[AXE]

Went in a few weeks ago for my scope test, I "passed" the official test. I had been going in for the last 6 months or so though, for oil consumption monitoring. My engine was burning oil, so every 1k miles I would go to my dealership, or if traveling, to a local dealership and have them log my oil level, mileage, and top up oil. My dealership service center saw the issues and were awesome, they pushed GM to replace my engine due to oil consumption issues, approved. I was told it may take 2 months to get engine delivered, it arrived 2 weeks later, and a few days after that I dropped my truck off. They gave me a loaner, and the day after I dropped it off they already have it on the lift. Fingers crossed. Anyone have any advice on what is needed to break in these new engines?

Break in = <1000
Wear in = <15000

Break in happens quickly and is mostly over after your first tank of fuel. You only get one chance to get the rings to seat with the cylinder walls. They have a special coating on them intended for break in. Once the coating is gone, you lose the effectiveness This will be more true with 0W40 oil. This may be partly why your motor used oil.

I would run the motor in a spirited fashion (don't lug it or redline it) preferably on an open road and limit idling time. Run it through the gears in auto and manual. Get the rpms up and then back down and vary the throttle inputs. Run it 30-50 miles and let it cool down and repeat a couple more times.. Then you can drive it "normally" for a few weeks. Change the oil early, no more than 1000-1500 miles cause it's filthy. Then do it again at 3000-3500 miles. Now your into wear in and run intervals you like based upon driving habits and conditions.

That's how I did mine. I still get a little consumption, but I use the paddles often and get into higher rpms, so there's bound to be some blow by. I change oil at 3333 miles, so its not down much and I don't worry about it.

After you get past 3k miles you can do oil analysis if you want to see how it progresses.

 

[Dragon]

Went in a few weeks ago for my scope test, I "passed" the official test. I had been going in for the last 6 months or so though, for oil consumption monitoring. My engine was burning oil, so every 1k miles I would go to my dealership, or if traveling, to a local dealership and have them log my oil level, mileage, and top up oil. My dealership service center saw the issues and were awesome, they pushed GM to replace my engine due to oil consumption issues, approved. I was told it may take 2 months to get engine delivered, it arrived 2 weeks later, and a few days after that I dropped my truck off. They gave me a loaner, and the day after I dropped it off they already have it on the lift. Fingers crossed. Anyone have any advice on what is needed to break in these new engines?

Good they acted quickly.
Especially as I hear of backorder stories...

 

[FormerTaco]

Good they acted quickly.
Especially as I hear of backorder stories...

I was completely shocked at the approval and following speed of everything.

 

[RackemupCP]

I was completely shocked at the approval and following speed of everything.

Dealerships matter...

 

[FormerTaco]

Picked the truck up today, new engine at 64k miles. So far so good.

 

[Battlebornzr2]

Finally got my wifes yukon denali in for the recall, it failed. But is running fine.
Its been 1 week and my dealer called yesterday to schedule install, they already have the engine in.

 

[SuperBlueZR2]

I wish my dealer was that responsive. Mine's been parked there for over a week and I can't even get the rep on the phone or in person. No idea if they've ordered the engine yet, although I did get put on the waiting list for a loaner - they have 18 and all of them are currently loaned out.

 

[FormerTaco]

I wish my dealer was that responsive. Mine's been parked there for over a week and I can't even get the rep on the phone or in person. No idea if they've ordered the engine yet, although I did get put on the waiting list for a loaner - they have 18 and all of them are currently loaned out.

Not sure where you are, but most larger dealerships have contracts with a rental car company. My dealership had me in a free rental (tiny crossover) just for my recall test, which was a 24 hour deal. They gave me an equinox loaner for the replacement timeframe. Not trying to brag, just saying that if you have a shit dealership, you might have to push them, threaten to call GM, etc. They exist based on their GM relationship and ratings, they earn bonuses based off of it. I was fortunate with my dealership, but if you have a shitty one, raise hell.

 

[SuperBlueZR2]

Without naming names, Danica Patrick is their spokeswoman.

 

[winged_ZR2]

Personally, I'd go just about anywhere Danica told me to go...

Sounds like they are taking care of you which is awesome. Good luck with the new engine!

 

[Busa Dave]

Personally, I'd go just about anywhere Danica told me to go...

Oh my! She has to make money somehow. That company she is connected with has got some troubles that are not going away anytime soon. https://www.carcomplaints.com/news/2025/endurance-warranty-lawsuit-partly-dismissed.shtml

I have on the last 9 or 10 trucks just go with the manufacturers extended service contract for 100k. I trade at 100k or so anyway. After 100k and a couple or maybe 3 years am ready for a new one. The current 2024 will be replaced with the new upcoming T1-2 platform and an upgraded oil burner among other things. Do not know if I can wait until 2028 for the HD may have to get a 2027 and live with it a couple of years then get a 2029. Always a good idea to wait a year on the new models to allow for bugs which there always are on the first year to be remediated.

 

[Byrds8]

The refresh trucks have been out for 4 years now and some of the bugs are still there. Not sure Id put stock into anything ever really being resolved anymore.

 

[Busa Dave]

The refresh trucks have been out for 4 years now and some of the bugs are still there. Not sure Id put stock into anything ever really being resolved anymore.

Mine has been almost perfect. Sometimes you just get something that has issues some serious some not. Have even had a bad Vette and a MB that were bought back.

 

[SuperBlueZR2]

So I finally got a Chevy Trax loaner from the dealer and the rep told me "good news, your engine should arrive this week and be installed by the end of the week, two weeks max." That was 4 weeks ago. Haven't heard a peep from them. I understand its the holidays and you can't trust shipping times or service techs being there, but if I know that - the dealer should too. Don't promise me something you can't guarantee, then when the promise expires, CALL THE CUSTOMER AND TELL THEM WHY! Common sense has become all too uncommon. Makes me wonder why they call them customer service reps.

 

[Byrds8]

^This 100%