DEF fluid

[Tucdog]

What is the best for a 2022 eco diesel? I had to sue Chevy on my 2021 as they tried to blame issues because I didn’t use GM fluid but used Peak.

Thanks!

 

[Choupique]

DEF is DEF is DEF as long as it meets the appropriate ASTM or EU specs.

The most important thing is getting it fresh and stored indoors.