GMC Duramax Diesel 2015 Owner's Manual page 117

12-2 Technical Data
Vehicle Data
Capacities and Specifications
The following approximate capacities are given in metric and English conversions. See Recommended Fluids and
Lubricants on page 11-8.
Cooling System (Pickup Models)
8 Cylinder
Cooling System (Van Models)
Front Heat or AC Only
Front Heat or AC Plus Fuel Operated Heater (FOH)
Front and Rear Heat or AC Only
Front and Rear Heat or AC Plus Fuel Operated Heater (FOH)
Diesel Exhaust Fluid (DEF) Tank*
Pickup Models (8 Cylinder)
Van Models
Engine Oil with Filter
8 Cylinder Engines
Application
Capacities
Metric
27.0 L
20.0 L
20.9 L
21.5 L
22.4 L
20.1 L
20.1 L
9.5 L
English
28.5 qt
21.2 qt
22.1 qt
22.7 qt
23.7 qt
5.3 gal
5.3 gal
10.0 qt