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2018 GMC Sierra

EPA MPG Owner MPG Estimates
2018 GMC Sierra C15 Cab Chassis 2WD 8 cyl, 5.3 L, Automatic 6-spd
Regular Gasoline View Estimates
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Combined MPG:17
combined
city/highway
MPG
City MPG:15
city
Highway MPG:20
highway
5.9 gals/ 100 miles
2018 GMC Sierra K15 Cab Chassis 4WD 8 cyl, 5.3 L, Automatic 6-spd
Regular Gasoline
Not Available
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Combined MPG:17
combined
city/highway
MPG
City MPG:15
city
Highway MPG:19
highway
5.9 gals/ 100 miles
2018 GMC Sierra 15 Hybrid 2WD 8 cyl, 5.3 L, Automatic 8-spd
Regular Gasoline
Not Available
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Combined MPG:20
combined
city/highway
MPG
City MPG:18
city
Highway MPG:24
highway
5.0 gals/ 100 miles
2018 GMC Sierra C15 2WD 6 cyl, 4.3 L, Automatic 6-spd
Regular Gasoline
Not Available
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Combined MPG:20
combined
city/highway
MPG
City MPG:18
city
Highway MPG:24
highway
5.0 gals/ 100 miles
E85
Combined MPG:14
combined
city/highway
MPG
City MPG:12
city
Highway MPG:16
highway
7.1 gal/100mi
2018 GMC Sierra C15 2WD 8 cyl, 5.3 L, Automatic 8-spd
Regular Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:18
combined
city/highway
MPG
City MPG:16
city
Highway MPG:22
highway
5.6 gals/ 100 miles
2018 GMC Sierra C15 2WD 8 cyl, 5.3 L, Automatic 6-spd
Regular Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:19
combined
city/highway
MPG
City MPG:16
city
Highway MPG:23
highway
5.3 gals/ 100 miles
2018 GMC Sierra C15 2WD 8 cyl, 5.3 L, Automatic 6-spd
Regular Gasoline View Estimates
How can I share my MPG?
Compare
Combined MPG:19
combined
city/highway
MPG
City MPG:16
city
Highway MPG:23
highway
5.3 gals/ 100 miles
E85
Combined MPG:14
combined
city/highway
MPG
City MPG:12
city
Highway MPG:17
highway
7.1 gal/100mi
2018 GMC Sierra C15 2WD 8 cyl, 6.2 L, Automatic 8-spd
Premium Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:17
combined
city/highway
MPG
City MPG:15
city
Highway MPG:21
highway
5.9 gals/ 100 miles
2018 GMC Sierra 15 Hybrid 4WD 8 cyl, 5.3 L, Automatic 8-spd
Regular Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:18
combined
city/highway
MPG
City MPG:16
city
Highway MPG:21
highway
5.6 gals/ 100 miles
2018 GMC Sierra K15 4WD 6 cyl, 4.3 L, Automatic 6-spd
Regular Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:19
combined
city/highway
MPG
City MPG:17
city
Highway MPG:22
highway
5.3 gals/ 100 miles
E85
Combined MPG:13
combined
city/highway
MPG
City MPG:12
city
Highway MPG:15
highway
7.7 gal/100mi
2018 GMC Sierra K15 4WD 8 cyl, 6.2 L, Automatic 8-spd
Premium Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:17
combined
city/highway
MPG
City MPG:15
city
Highway MPG:20
highway
5.9 gals/ 100 miles
2018 GMC Sierra K15 4WD 8 cyl, 5.3 L, Automatic 8-spd
Regular Gasoline View Estimates
How can I share my MPG?
Compare
Combined MPG:17
combined
city/highway
MPG
City MPG:15
city
Highway MPG:20
highway
5.9 gals/ 100 miles
2018 GMC Sierra K15 4WD 8 cyl, 5.3 L, Automatic 6-spd
Regular Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:18
combined
city/highway
MPG
City MPG:16
city
Highway MPG:22
highway
5.6 gals/ 100 miles
2018 GMC Sierra K15 4WD 8 cyl, 5.3 L, Automatic 6-spd
Regular Gasoline
Not Available
How can I share my MPG?
Compare
Combined MPG:18
combined
city/highway
MPG
City MPG:16
city
Highway MPG:22
highway
5.6 gals/ 100 miles
E85
Combined MPG:13
combined
city/highway
MPG
City MPG:11
city
Highway MPG:16
highway
7.7 gal/100mi

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