*Actual Product May Vary In Store

Hot Shot’s Secret Premium DEFender is engineered to clean and prevent DEF crystal buildup. Harmful deposits in the SCR system can reduce performance, increase fuel use, and lead to costly repairs or downtime. Restore performance while protecting the injector, sending unit, tank and more. Use at each time refilling DEF to prevent white crystallization deposits from forming. Triple-filtered for purity. Ash and dye-free formula guaranteed not to void the manufacturer’s warranty when used as directed.

Cleans and prevents crystal formation Lubricates and protects the entire • Lubricates and protects the entire SCR system • Clears common SCR/DEF trouble codes (see label for details) • Restores DEF nozzle spray pattern • Reduces downtime and expensive repairs • Safe for all SCR systems and Urea AdBlue/DEF fluids • Lowers DEF freeze point • 8 oz treats 20 gallons of DEF • Only add to DEF/AdBlue. DO NOT ADD TO DIESEL FUEL.