Silverado 2500 4WD V8-6.6L DSL Turbo (2010)
Fluid - A/T: Capacity Specifications
AUTOMATIC TRANSMISSION FLUID CAPACITY
Allison 1000 Automatic Transmission
Initial Fill .......................................................................................................................................................................................... 12.0 liters (12.7 quarts)
Refill ..................................................................................................................................................................................................... 7.0 liters (7.4 quarts)
NOTE: All capacities are approximate. When adding, be sure to fill to the approximate level. Recheck fluid level after filling.