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Fuel Economy of 1988 GMC Suburban
EPA MPG
MODEL City Comb Hwy
1988 GMC V15 Suburban 4WD 8 cyl, 5.7 L, Automatic 4-spd, Regular Gasoline
1988 GMC V15 Suburban 4WD 11

City
13

Combined

 15

Highway
1988 GMC V15 Suburban 4WD 8 cyl, 5.7 L, Manual 4-spd, Regular Gasoline
1988 GMC V15 Suburban 4WD 11

City
11

Combined

 13

Highway
1988 GMC V15 Suburban 4WD 8 cyl, 6.2 L, Automatic 4-spd, Diesel
1988 GMC V15 Suburban 4WD 15

City
16

Combined

 20

Highway