2024 Chevy Duramax Diesel Exhaust Fluid Change Interval. If you don’t hit the mileage requirements, check your owner’s manual for the specific time period in which you should change your fluids and filters. There is a spill level plug on the bottom of the pan (connected to a standpipe inside) and a fill plug on the r side.
Level is checked by removing the side plug and the fluid should have a steady flow that turns into a drip, at this point,. The l5p duramax diesel can be.