How many MPG does a 2018 GMC Sierra K15 Chassis get?

The 2018 GMC Sierra K15 Chassis gets 17 MPG combined according to the EPA — about 15 MPG in the city and 19 MPG on the highway. Combined MPG is a 55% city / 45% highway blend.

What is the annual fuel cost for a 2018 GMC Sierra K15 Chassis?

Driving 15,000 miles a year at 17 MPG combined, the 2018 GMC Sierra K15 Chassis uses about 882 gallons of fuel per year — roughly $3,087 at $3.50/gallon. Your real cost varies with local gas prices and driving style.

What is the difference between city and highway MPG on the 2018 GMC Sierra K15 Chassis?

The 2018 GMC Sierra K15 Chassis returns 15 MPG city and 19 MPG highway. Highway is higher because steady-speed cruising avoids the stop-and-go acceleration that burns fuel in city driving. The 17 MPG combined figure blends the two.

Is 17 MPG good for a special purpose vehicle 4wd?

For a special purpose vehicle 4wd, 17 MPG combined is on the thirstier side. Hybrid trims and smaller engines, where offered, return better numbers.

2018 GMC Sierra K15 Chassis MPG

Official EPA fuel-economy rating for the 2018 GMC Sierra K15 Chassis.

EPA combined fuel economy

17MPG

combined (55% city / 45% hwy)

City

MPG

Highway

MPG

Engine

5.3L

Cylinders

Drive

4WD

Class

Special Purpose Vehicle 4WD

Running cost

Estimated annual fuel cost

Per year

$3,087

15,000 mi/yr

Fuel used

882 gal

per year

At gas price

$3.50

per gallon

Based on 17 MPG combined and 15,000 miles per year. Adjust for your local gas price and annual mileage.

Other GMC Sierra K15 Chassis years

2017 2016 2015 All years →

FAQ

2018 GMC Sierra K15 Chassis

How many MPG does a 2018 GMC Sierra K15 Chassis get?: The 2018 GMC Sierra K15 Chassis gets 17 MPG combined according to the EPA — about 15 MPG in the city and 19 MPG on the highway. Combined MPG is a 55% city / 45% highway blend.
What is the annual fuel cost for a 2018 GMC Sierra K15 Chassis?: Driving 15,000 miles a year at 17 MPG combined, the 2018 GMC Sierra K15 Chassis uses about 882 gallons of fuel per year — roughly $3,087 at $3.50/gallon. Your real cost varies with local gas prices and driving style.
What is the difference between city and highway MPG on the 2018 GMC Sierra K15 Chassis?: The 2018 GMC Sierra K15 Chassis returns 15 MPG city and 19 MPG highway. Highway is higher because steady-speed cruising avoids the stop-and-go acceleration that burns fuel in city driving. The 17 MPG combined figure blends the two.
Is 17 MPG good for a special purpose vehicle 4wd?: For a special purpose vehicle 4wd, 17 MPG combined is on the thirstier side. Hybrid trims and smaller engines, where offered, return better numbers.

Related tools

Fuel cost calculator →More GMC MPG →