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Fuel Economy of 2008 GMC Sierra
EPA MPG
MODEL City Comb Hwy
2008 GMC Sierra C15 2WD 6 cyl, 4.3 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra C15 2WD 15

City

17

Combined

20

Highway

2008 GMC Sierra C15 2WD 8 cyl, 4.8 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra C15 2WD
14

City

16

Combined

19

Highway

2008 GMC Sierra C15 2WD 8 cyl, 5.3 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra C15 2WD
15

City

17

Combined

20

Highway

2008 GMC Sierra C15 2WD 8 cyl, 6.0 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra C15 2WD 13

City

15

Combined

18

Highway

2008 GMC Sierra C15 2WD 8 cyl, 6.2 L, Automatic 6-spd, Premium Gasoline
Compare2008 GMC Sierra C15 2WD 12

City

15

Combined

19

Highway

2008 GMC Sierra K15 4WD 6 cyl, 4.3 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra K15 4WD 14

City

15

Combined

18

Highway

2008 GMC Sierra K15 4WD 8 cyl, 4.8 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra K15 4WD
14

City

16

Combined

18

Highway

2008 GMC Sierra K15 4WD 8 cyl, 5.3 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra K15 4WD
14

City

16

Combined

19

Highway

2008 GMC Sierra K15 4WD 8 cyl, 6.0 L, Automatic 4-spd, Regular Gasoline
Compare2008 GMC Sierra K15 4WD
13

City

14

Combined

17

Highway

2008 GMC Sierra K15 AWD 8 cyl, 6.2 L, Automatic 6-spd, Premium Gasoline
Compare2008 GMC Sierra K15 AWD
12

City

14

Combined

18

Highway

2008 GMC Sierra C15 2WD 8 cyl, 5.3 L, Automatic 4-spd, Regular Gas or E85
Compare2008 GMC Sierra C15 2WD Gas 15

City

17

Combined

20

Highway

E85 11

City

13

Combined

15

Highway

2008 GMC Sierra K15 4WD 8 cyl, 5.3 L, Automatic 4-spd, Regular Gas or E85
Compare2008 GMC Sierra K15 4WD Gas 14

City

16

Combined

19

Highway

E85 11

City

12

Combined

14

Highway