Doc's Diesel DEX6 Dexron VI and Mercon LV Automatic Transmission Fluid 55 Gallon DrumDocs Diesel Transmission Fluid: Docs Diesel DEX6 Synthetic Automatic Transmission Fluid delivers reliable, long lasting performance for both modern and legacy transmissions. Engineered for stability, cleanliness, and broad compatibility, this advanced formula helps protect critical components, reduce wear, and maintain smooth shiftingmile after mile. Product Details: Versatile compatibility with DEXRON III and earlier fluids Enhanced shear stability

They trap dirt and debris that can wreck key parts like the torque converter and fluid pump

Heads up: The 3-gallon option would work well if your oil capacity is 13 quarts (2011 and 2022)

DH515172-2

and SCR systems

Use 8oz of Interval Fuel Treatment per 20 gallons of diesel fuel

It removes fuel system deposits that reduce fuel economy and asphaltenes that plug fuel filters

Standard Service (normal duty): Every 10

DP0965+DR0982-2

AZ – Arizona

2010 188 / 255 2007-2009 177 / 2401 SILVERADO 3500HD 2WD

Quality tested and inspected to ensure peak efficiency

The best all-around diesel fuel system cleaner