MPGCheck

GMC K15 Suburban 4WD Fuel Economy History

MPG by year — EPA official data.

Best MPG Year
1986
16 MPG combined
Latest Model
1986
16 MPG combined
YearEngineCityHwyCombinedFuel Cost/yr
1986Diesel Diesel152016$5,300Details →
1985Diesel Diesel141916$5,300Details →
1984Diesel Diesel152016$5,300Details →