Doc’s Diesel Workhorse Additive Kit: Modern diesel engines deliver serious power, but they demand serious protection. Low-lubricity fuel, injector deposits, soot buildup, and internal friction slowly rob performance and lead to expensive repairs. This kit was built to protect your diesel the right way, not with a single additive, but with a complete protection strategy. 24/7 Diesel Treatment goes in every tank to support fuel lubricity, maintain injector cleanliness, and keep your fuel system operating at peak efficiency. Interval Diesel Treatment delivers a concentrated clean to help restore injector spray pattern, improve combustion performance, and reduce deposit buildup. Oil Friction Treatment protects where wear matters most — inside the engine — reducing metal-on-metal contact and helping safeguard components under heavy load, towing, and high-heat conditions. From the fuel tank to the crankcase, this kit helps defend your fuel system, combustion process, and engine internals. Because protecting your diesel should be simple, and done right. Product Details: View each item for individual product specs. Includes 1 Fuel Additive, 1 Fuel Cleaner and 1 Oil Treatment Doc’s Diesel 24/7 Diesel Treatment + Cetane Boost Doc’s Diesel Interval Fuel Treatment Doc's Diesel Oil Friction Treatment Treatment Plan: 24/7 Diesel Treatment Add Before Fueling: For best results, pour additive into tank prior to filling with diesel fuel Dosage: Standard Use: 1oz per 25 gallons of fuel Performance Boost: 2oz per 25 gallons of fuel Treats up to 100 Gallons Interval Diesel Treatment Pour entire bottle into fuel tank before filling Dosage: 12 oz treats up to 40 gallons of diesel Frequency: Add to fuel system every 5,000 miles as part of a regular maintenance plan. Use at every fuel filter change Oil Friction Treatment Use one 16oz bottle to treat your Powerstroke, Cummins, Duramax, and EcoDiesel Engines. Simply add 1.25oz per quart of motor oil. Heavy-Duty & High-Mileage engines use 2.5oz per quart of motor oil. Add with every oil change Doc’s Part Number: DDAK-002
