Amalgamated, Inc is a custom blender of Top ShelfTM cold weather and performance diesel fuel additives and has been in business since 1979. We are headquartered in Fort Wayne, Indiana and supply diesel fuel additives throughout the world. Our company specializes in diagnosing fuel problems and offers diesel fuel additive packages that will improve the performance of almost any diesel fuel. Whether you use a Truck, Tractor, Ship or even Home Heating Oil, we will be able to improve the performance of your diesel equipment with the right diesel fuel additive package. We specialize in Top ShelfTM Premium Diesel Fuel Additive and Biodiesel winterization Additives. **NEW** Click here for more info about our newest products. We custom manufacture our Top ShelfTM diesel fuel additive products using computer controlled blending equipment which precisely measures and monitors batch quality. This process allows Amalgamated, Inc to guarantee formulation of complex Premium Diesel Fuel Additives and Biodiesel Fuel Additives to within +/- 0.1% on all batch components. Every Top ShelfTM Diesel Additive Package We Make For You Is Guaranteed To Be Just What You Requested! Amalgamated, Inc offers unique, Top ShelfTM custom formulated diesel fuel cold weather additives and performance additives which are targeted specifically to the needs and performance desires of today's progressive distillate (diesel fuels, gas oils, fuel oils, etc.) refinery producers, pipeline transporters, wholesale distributors, marketers, and especially end fuel users. The NEW: The Diesel Pro® line of diesel fuel additives have rapidly become a gold standard for Premium Diesel Fuel Additives. With three tiers of performance responsiveness (Superior, Enhanced, and Elite) the Diesel Pro® line offers the flexibility similar to custom blending without The 'Classics': Top ShelfTM TDR-FL® (Summer) and TDR-WDA® (Winter) have been formulated for today’s Tier 3 and Tier 4 engines equipped with High Pressure Common Rail (HPCR) diesel fuel injectors. Amalgamated, Inc's detergents have been tested and certified by their manufacturers to eliminate both conventional diesel injector nozzle deposits as well as internal diesel injector deposits (IDID) in both older and newer engines. TDR-FL® (Summer) was especially formulated and developed to improve the reliability and performance of all diesel fuels. Adding proprietary winterization chemistry is what makes TDR-WDA® (Winter) a truly “all in one” premium additive. TDR-WDA® (Winter) for cold weather applications contains the same balance of premium performance enhancing properties as TDR-FL® (Summer). ® TM Amalgamated, Inc