So, I went to O'Reiley's to buy some Antifreeze because I have to drain the system this weekend to change my water pump. I thought I had purchased a case of regular Fleet Charge 50/50 Antifreeze like I've used before. When I got home I realized that they had sold me a case of Final Charge. Is Final Charge Antifreeze ok to use in these trucks?

 

I'd make sure its ethylene glycol and look on the bottle for Cummins approval.

 

thanks. i didn't really trust using the final charge it so I just went back and exchanged it for some fleet charge. at least i know it's ok to use with these trucks.

 

Better safe than sorry!!