While using MotorKote DEF Reducer 16-Ounce the combustion fuel catalyst allows the fuel to burn clean and efficiently with minimal soot and contamination. This ultra-concentrated diesel additive helps reduce the need for regenerative burn cycles and helps reduce DEF usage and extending diesel particulate filter life. Regenerative burn cycles lead to downtime and other excessive costs. Use of this product will assist in keeping your DPF (Diesel Particulate Filter) clean. A clean DPF will reduce DEF consumption. Use of this product will reduce Regenerative Cycles. Reduced Regen cycles will reduce DEF consumption. Directions: Use in diesel fuel tanks only. DO NOT use in DEF tank. Minimum Treatment: Use 1 ounce / 10 gallons of diesel fuel. Maximum Treatment: Use 1 ounce / 5 gallons of diesel fuel. Use every fill up. This diesel fuel additive complies with the low sulfur content requirements for use in diesel motor vehicles and non-road engines.