GMC C15 Suburban 2WD: MPG and fuel economy by year

The EPA has rated the GMC C15 Suburban 2WD across 3 model years, from the 1984 GMC C15 Suburban 2WD through the 1986 GMC C15 Suburban 2WD. The most recent 1986 GMC C15 Suburban 2WD returns 18 combined MPG.

Pick a year below to open the full GMC C15 Suburban 2WD page for that model year. Each year page covers combined, city, and highway MPG, the trim variants the EPA rates separately, the annual fuel cost across three driving patterns, and a year-over-year comparison so you can see whether the car has improved.

Fuel economy by model year

Combined MPG, city MPG, highway MPG, and the EPA's estimated annual fuel cost for every model year of the GMC C15 Suburban 2WD. Click any year to see the full breakdown for that model year, including trim variants, the drivetrain, and a comparison against other vehicles in its segment.

Year	Model	Combined MPG	City	Highway	Annual fuel cost
1986	1986 GMC C15 Suburban 2WD	18 MPG	16 MPG	22 MPG	$4,500
1985	1985 GMC C15 Suburban 2WD	18 MPG	15 MPG	22 MPG	$4,500
1984	1984 GMC C15 Suburban 2WD	18 MPG	16 MPG	22 MPG	$4,500

How the GMC C15 Suburban 2WD compares against the Special Purpose Vehicle 2WD class

Buyers usually compare the GMC C15 Suburban 2WD against other cars in the same EPA class. The list below shows the most efficient cars in the Special Purpose Vehicle 2WD class for the 1986 model year, the latest year on this page. Each link opens the full page for that car.

Source: U.S. EPA fuel economy dataset. Annual fuel cost assumes 15,000 miles of driving per year and a 55% city, 45% highway split.