2018 Z71 5.3L / PP 0w20 / 7k OCi

[dmac_73]

This is my dad's UOA on his truck we decided to send to BSL. Hes the original owner. All prior OCIs were warranty dealer changes.

The wear numbers look pretty good. The copper numbers i am assuming are from the oil cooler. I am a little concerned about the silicon. This truck is 100 percent factory. Stock airbox.

Oil was PP 0w20 8 quarts. The miles were driven during a hot Florida summer.

Dave

 

[Danno]

I would stay at 7,000 miles or less until copper normalizes.
And make sure to keep your OCI within warranty requirements.
The 9,000 mile recommendation caught my eye.

 

[K20FA5]

Looks good!

 

[Artem]

Sucks to have all that copper floating around, scraping **** inside the block, simply due to an added oil cooler.