[Www123]

I've heard that the use of a *Full Synthetic motor oil like Castor or Mobil "1" will be better for the belts as the full synthetic motor oils don't breakdown like synthetic blends or reg grade motor oils. Another maintenance area is engine "coolant" as to prevent any over heating issues, use an approved GM coolant.

It requires synthetic 5w-30 dexos oil is synthetic

 

[Pete in PA]

Owners manual has the belts being changed at 15 years or 150k miles. 10 yrs. or 100k miles should be fine.

 

[rafael.betancourt]

the issue that has been reported in europe with these engines is for folks that drive short distances. Basically the engine never reaches operating temp, then fuel dilutes on the oil and the belt is oil wet with fuel. This acceletares the degradation of the belt and it starts to break clogging your oil pickup.... RIP goodbye engine

 

[jimkoe329]

Definitely change oil on time to prevent oil contamination but only time will tell if these new design belts ( out since 2021 in Trailblazer 1.2 L ) hold up.
I remember a time when wheel and master cylinders, cooling hoses and fan belts had to be constantly rebuilt or changed. Now if maintained correctly they seem to last forever. These new materials are amazing.

 

[Rx4Pain]

That was a lot of info....

Essentially, particle contamination and clogging of lubrication systems is the unlikely danger of the Wet Belts. Historically.

Change your oil every 4-5 thousand miles and I am pretty sure something else will give you trouble, long before the belts.

If you do like many people and ignore everything...change oil at later intervals...and do lots of short drives/"sever" condition driving...you might have an issue.

Nothing really new here.

Ken

 

[Funkabull]

I would say no, it's not an issue. Firstly, it's not made out of the same rubber as a traditional timing or fan belt, it's a nitrile/polyaramid fiber belt designed to withstand oil and extreme heat. Secondly, as Montkun stated, these engines have been in production since 2019 with no recalls or TSB's for the timing belt. That's long enough for several hundred of them to have hit 100,00+ miles and to be on their second belt. The Ford Ecoboost 1.0L 3-cylinder BIO had issues with delamination and fragmentation and therefore would clog the oil pickup, starve the engine of oil and ka-boom. They used a different type of belt. The biggest issue that these engines will face is neglected maintenance by the owners. Infrequent oil changes are the main way to cause issues with BIO systems. People tend to treat GM cars, especially low-priced ones, as disposable and don't give them the attention that any new car is due, they tend to drive them into the dirt and then complain that things break or it doesn't last as long. Any car will die an early death if neglected. Change your oil often, I'm doing 5,000 mile changes and ignoring the computer unless it says to do it sooner. I also plan to change my belt before 100K miles as insurance.

I think for assurance sake I might just replace those belts at 80K

 

[T-Rax25]

This thread here goes through a tear down of a used 2024 Trax engine with 133,000 miles on it. The wet belt did just fine and was still good to go at that mileage.

 

[wxgrl23]

This thread here goes through a tear down of a used 2024 Trax engine with 133,000 miles on it. The wet belt did just fine and was still good to go at that mileage.

I'm not able to click on your link for that thread but I'm interested in reading it. Can you repost the link by chance?

 

[T-Rax25]

I'm not able to click on your link for that thread but I'm interested in reading it. Can you repost the link by chance?

You have to join the FB group to be able to see it. Join up, there is some good info in it.