Doc’s Diesel Duramax ULV Full Synthetic Automatic Transmission Fluid

Doc’s Diesel Transmission Fluid: Doc’s Diesel Duramax ULV is the trusted choice for rugged reliability and long-haul peace of mind. Engineered for heavy-duty demands, this ultra-low-viscosity formula delivers dependable protection, smooth performance, and long-term durability across tough operating conditions. Product Details: Full synthetic formulation with improved cold flow and oxidation resistance Corrosion inhibition that helps protect internal components from rust and breakdown Wear protection that maintains viscosity under extreme stress and temperature Ultra low viscosity for ideal flow, smooth operation, and consistent performance in all conditions Doc's Part Number: DOCSDEXULV Change Interval: Above all recommendations, change according to your vehicle’s manufacturer's warranty. Transmission Fluid: Normal Duty: Every 60,000 to 100,000 miles maximum Severe Duty: Every 30,000 to 50,000 miles maximum