MPG by Model

MakesGMCSuburban

GMC Suburban MPG

Its best-rated version reaches 18 MPG combined in 1984–1987, the diesel R15 Suburban 2WD. Its weakest year peaked at 13 MPG (1992–1995).

GMC Suburban: best and lowest EPA combined MPG of its versions, model years 1984–1999101520MPG198419901995199918 MPG peaklowest peak 13GMC Suburban: best and lowest EPA combined MPG by model year101520MPG19841986198819901992199419961999
lowest to best versionbest versionmedian of its class
1,071.4 gal

a year at 15,000 miles for the best 1999 version, the Suburban 1500 2WD. Put it next to its 1984 predecessor, at your own mileage.

Compare in gallons

The GMC Suburban has EPA ratings for 16 model years, 1984–1999, most often among special purpose vehicles. In 1994 its most efficient version still placed second from the bottom of 41 special purpose vehicles, where the Toyota Land Cruiser rated lowest.

The best rating of the Suburban fell from 18 MPG in 1984 to 14 MPG in 1999, the second largest drop among 28 long-running special purpose vehicles. Between 1991 and 1992 its best rating fell 4 MPG, one of the five largest one-year drops among 28 special purpose vehicles rated for eight or more years.

Among 39 SUVs, 1999

The Suburban placed 31st (tied). The class leader was the Suzuki Vitara at 24 MPG. The next higher rating, 15 MPG, is shared by six nameplates.

Best EPA combined MPG of each of the 39 SUVs rated for 1999152025Suburban 14median 16VitaraBest EPA combined MPG of each of the 39 SUVs rated for 1999152025Suburban 14median 16

The Suburban, five years at a time

Average rating of its best version per span, placed among special purpose vehicles.

1984–8819th of 30
1989–9330th of 42
1994–9832nd of 38

Powertrains under the name

  • Diesel

    Rated in 1984–1991.

  • Gasoline

    Rated in 1984–1999.

All 16 model years, best and lowest version
Model yearsBest versionCombinedCity / hwyLowest versionVersions
1998–1999Suburban 1500 2WD1412 / 17141
1997Suburban 1500 2WD1412 / 17122
1996Suburban 1500 2WD1412 / 17132
1995Suburban 1500 2WD1312 / 16122
1994Suburban 1500 2WD1311 / 16132
1992–1993Suburban 1500 2WD1311 / 16122
1991R1500 Suburban 2WD diesel1715 / 20124
1990R1500 Suburban 2WD diesel1715 / 21125
1989R1500 Suburban 2WD diesel1715 / 22125
1988R15 Suburban 2WD diesel1715 / 21115
1987R15 Suburban 2WD diesel1816 / 21117
1986C15 Suburban 2WD diesel1816 / 22118
1985C15 Suburban 2WD diesel1815 / 221110
1984C15 Suburban 2WD diesel1816 / 221110

Version names in the EPA list: C15 Suburban 2WD, K15 Suburban 4WD, R15 Suburban 2WD, R1500 Suburban 2WD, Suburban 1500 2WD, Suburban 1500 4WD, Suburban V1500 4WD, V15 Suburban 4WD.

Same class, 1999

Suzuki Vitara24 MPGFord Expedition14 MPGLand Rover Discovery14 MPGToyota Land Cruiser13 MPG

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