Time to Clean The new Rislone DEF Crystal Clean™ Diesel DEF & SCR Emissions System Cleaner does exactly what you think it should. It cleans your DEF system, dissolving the crystalized urea.

The DEF level sensor of the affected Chevy Silverado, Tahoe and Suburban vehicles with Duramax engines may read incorrectly, function erratically, or become stuck.

Leaking pipes can set you back $150-$200, a failing tank level sensor can cost around $500, and the DEF injector itself can cost around $250 to replace. DEF system replacement: $8,000-$15,000 ...

Header sensors measure the temperature and quantity of the fluid level in the tank while monitoring the quality of the urea solution. More than 30 sensor geometries are available for custom ...

If you have a diesel vehicle and want to know when to worry about the DEF warning light, read on.