2020 GMC Sierra Chassis MPG
Official EPA fuel-economy rating for the 2020 GMC Sierra Chassis.
EPA combined fuel economy
15–17MPG
combined (55% city / 45% hwy)
City
14
MPG
Highway
18
MPG
Engine
4.3–5.3L
Cylinders
6
Drive
RearWD
Class
Special Purpose Vehicle 2WD
Running cost
Estimated annual fuel cost
Per year
$3,283
15,000 mi/yr
Fuel used
938 gal
per year
At gas price
$3.50
per gallon
Based on 16 MPG combined and 15,000 miles per year. Adjust for your local gas price and annual mileage.
Other GMC Sierra Chassis years
FAQ
2020 GMC Sierra Chassis
- How many MPG does a 2020 GMC Sierra Chassis get?
- The 2020 GMC Sierra Chassis gets 15–17 MPG combined according to the EPA — about 14 MPG in the city and 18 MPG on the highway, depending on trim (4 configurations). Combined MPG is a 55% city / 45% highway blend.
- What is the annual fuel cost for a 2020 GMC Sierra Chassis?
- Driving 15,000 miles a year at 16 MPG combined, the 2020 GMC Sierra Chassis uses about 938 gallons of fuel per year — roughly $3,283 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 2020 GMC Sierra Chassis?
- The 2020 GMC Sierra Chassis returns 14 MPG city and 18 MPG highway. Highway is higher because steady-speed cruising avoids the stop-and-go acceleration that burns fuel in city driving. The 15–17 MPG combined figure blends the two.
- Is 16 MPG good for a special purpose vehicle 2wd?
- For a special purpose vehicle 2wd, 16 MPG combined is on the thirstier side. Hybrid trims and smaller engines, where offered, return better numbers.
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