"Classic" TDR® (Premium Diesel Fuel Additives) "CLASSIC" TDR® - TRULY PREMIUM DIESEL FUEL ADDITIVES The TDR® line of specially formulated Premium Diesel Fuel Additives were developed to help improve the reliability and performance of diesel fuels for use in any age diesel vehicle or equipment in both on road and off road applications. They optimize the combustion and BTU conversion which will raise fuel economy in light and heavy-duty diesel powered vehicles, both on-road and off-road. The properly balanced combination of our special 'one-of-a-kind' chemistry cuts fuel and maintenance costs. This Premium Diesel Fuel Additive contains advanced Technology Injection Cleaners, Lubricity Agents, excellent Combustion Improver, Stabilizer, and Amalgamated, Inc's unique LCC (Liquid Catalyst Cleaner). Use TDR-FL® (Premium Summer Diesel Additive) for a complete and balanced summer/warm weather application or TDR-S Plus for more combustion (+7 cetane numbers.) In need of cold weather protection? The winter formulation also includes Cold Flow Improver and other Winterization chemistries. For optimal winterization protection with the same performance enhancing properties as see our TDR-WDA® (Premium Winter Diesel Additive.)