2024 Chevy Duramax Diesel Exhaust Fluid Type. 2011 thru 2025 chevy silverado/gmc sierra 2500hd/3500hd/4500/5500/6500 l5p/l5d & 2020 thru 2024 chevy silverado/gmc sierra 1500 lm2/lz0 (def) diesel exhaust fluid is a urea. Anyway i filled up with 5.89 gallons and can say with current mileage it looks like i would.
Checking the def fluid level is an essential. This is also compatible with.