Videos It is said that a picture is worth a thousand words. If that is true, then a video must be worth an encyclopedia. Amalgamated, Inc recently tested its exclusive TDR-FL (Premium Summer Diesel Fuel Additive) in a EMD 645 - DOTX 2000 engine. Notice the reduction in the before and after smoke exhaust as the additive promotes complete combustion process leaving less particulate matter to be released into the atmosphere. This is what utilizing a properly balanced diesel fuel additive will do. Watch now!