Diesel exhaust fluid, also known as DEF, serves many purposes. If you need some, you should reach out to Ridderman Oil. We deliver top-quality fuel at affordable prices.

Diesel exhaust fluid is a 32.5% solution of high-purity urea in de-mineralized water. It's used with the Selective Catalytic Reduction system (SCR) to reduce emissions of nitrogen oxides (NOx) from the exhaust systems of diesel vehicles.


Order your diesel exhaust fluid from us today. Our delivery order minimum is 150 gallons and maximum is 5000 gallons.