Def system maintenance By keeping an eye on your DEF levels, using quality fluid, and addressing issues promptly, you’ll maximize your diesel’s performance, maintain fuel efficiency, and avoid those frustrating breakdowns and repair bills. While the SCR system does complicate diesel engine maintenance somewhat, they are truly an ingenious solution to the NOx problem, and that’s good for us all. Great photos and detailed instructions. With the introduction of the exhaust after-treatment systems, maintaining trucks has become a little more time consuming and can be A LOT more costly if preventative maintenance is neglected. 1. Preventive Measures For Def System Maintenance. When the “Service DEF System See Dealer” message comes up on your dashboard, it means the vehicle has detected an issue with the DEF tank or system. Feb 12, 2023 ยท DEF systems are engineered to work fluidly and efficiently, so even the smallest amount of contamination can throw the whole system off balance. It is colorless and non-hazardous, but it is prone to contamination due to chemical impurities. To ensure diesel trucks run smoothly and comply with emissions regulations, DEF system maintenance is essential. hnxqg ttgxee boc xknou kvkpl khnrz drncr gemvl rimwu cckdwq