2024 Chevy Duramax Diesel Exhaust Fluid Change Cost. The typical price range is between $300 on the low end and $1,000 on the high end. This is the first time i got a def message on the 2024, but i remember my 2020 would first come with a 1000 mile message.
If you’re going to be maintaining your 3.0l duramax by yourself, take a look at our fluid capacities and specifications guide. If you want to replace a duramax engine, you can expect to pay an average of $15,000.