1500 is 31 gallon and 2500 is 39 gallon
The 2008 Chevrolet Suburban runs on regular unleaded.
42 gallons
About 45 gallons
42 IS THE ANWSER
The 1998 K2500 Suburban has a 44 gallon gas tank.
The 2015 Chevrolet Suburban runs on flex-fuel (FFV).
The 2003 Chevrolet Suburban runs on flex-fuel (FFV).
The 2010 Chevrolet Suburban runs on flex-fuel (FFV).
The 2004 Chevrolet Suburban runs on flex-fuel (FFV).
The 2014 Chevrolet Suburban runs on flex-fuel (FFV).
The 2006 Chevrolet Suburban runs on flex-fuel (FFV).
According to 4x4review.com, the fuel tank capacity for the 1/2 ton 2003 Chevrolet suburban is 31 gallons (117 liters) and the 3/4 ton is 37.5 gallons (142 liters).