X 1990 GMC Sierra 1500 4WD

6.2 L, 8 cyl, Man 4-spd, Diesel

EPA Fuel Economy

Combined: 16 MPG

City: 15 MPG

Highway: 17 MPG

MPG estimates for 2016 and older vehicles may have been revised. Learn More

X 2001 GMC Sierra 1500 4WD

6.0 L, 8 cyl, Auto 4-spd, Regular Gasoline

EPA Fuel Economy

Combined: 11 MPG

City: 10 MPG

Highway: 13 MPG

MPG estimates for 2016 and older vehicles may have been revised. Learn More