X 2021 Jeep Gladiator Rubicon EcoDiesel 4WD

3.0 L, 6 cyl, Auto 8-spd, Diesel

EPA Fuel Economy

Combined: 24 MPG

City: 21 MPG

Highway: 27 MPG

X 1992 GMC Sierra 1500 2WD

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

EPA Fuel Economy

Combined: 18 MPG

City: 16 MPG

Highway: 22 MPG

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