Dodge 2008 Challenger SRT8 Owner's Manual page 343

MAINTAINING YOUR VEHICLE 341
FLUID CAPACITIES
U.S. Metric
Fuel (Approximate) 19 Gallons 72 Liters
Engine Oil with Filter
6.1 Liter Engine (SAE 0W-40) 7 Quarts 6.6 Liters
Cooling System *
6.1 Liter Engine (MOPAR Antifreeze/Coolant 5 Year/100,000 Mile 15 Quarts 14.4 Liters
Formula) or equivalent
* Includes heater and coolant recovery bottle filled to MAX level.
7