Mike Bullock

Service advisor

Thank you. It it does that also, but I drive 23 miles to work, last week it was 74 degrees and 3 days when I got home it has went way up and blowing coolant out. I have to add coolant about once a month. The dealership says this in normal

I have a 2020 1500 3.0 duramax that has run on the warm side of 210 degrees since new, at 30,000 miles it overheats regularly. I have taken it in to the dealership for service every 5,000 miles and told them about the overheating, their answer is these trucks run warmer because of the DEF system and they said they could not get it to overheat. Any ideas or help would be much appreciated