Prime Guard Ultrapure Diesel Exhaust Fluid (DEF) is an excellent way to improve your vehicle's fuel efficiency, and lower maintenance costs, while also ensuring your vehicle meets or exceeds all EPA standards. Improves mileage, and reduces emissions. Ultrapure formula goes through water filtration at 6 different stages during the production process, resulting in the purest water quality possible.
Safe, environmentally friendly solution for selective catalytic reduction
Meets the stringent ISO 22241, AUS 32 and DIN 70070 standards for purity and concentration
Ultrapure, formaldehyde-free, NOx reducing treatment specifically formulated for diesel engines equipped with SCR systems
API certified, guaranteeing the quality and suitability for proper SCR operation