Super Tech DEF 2.5 Gallon is specially designed for diesel fuel vehicles equipped with Selective Catalytic Reduction (SCR) systems. Diesel Exhaust Fluid, commonly known as DEF, plays a crucial role in the SCR process, helping diesel engines meet EPA 2010 regulations. Super Tech DEF is a non-toxic solution composed of 67.5 percent purified water and 32.5 percent ultra-pure automotive grade urea. It's important to note that Super Tech DEF is neither a fuel nor a fuel additive. When injected into the exhaust stream and passed over a catalyst, this fluid assists in converting nitrogen oxides (NOx) into harmless nitrogen gas and water vapor, which are natural components of the air.

Super Tech DEF is colorless and odorless, meeting the highest purity and composition standards set by ISO Standards 22241. It is also certified by the American Petroleum Institute (API), ensuring superior quality and performance in SCR systems. To maintain optimal performance in SCR-equipped trucks, it is easy to monitor DEF levels using the DEF gauge integrated with the diesel fuel gauge. DEF is stored in a dedicated tank located next to the fuel tank on the driver's side, with tank sizes ranging from 6 to 23 gallons, depending on the truck's specific application. Ensuring a steady supply of Super Tech DEF allows drivers to keep their vehicles running cleanly and efficiently, contributing to a cleaner environment.