Trim Report

GMC Sierra W/T2018

Includes:15SIPU4WD|W/T
$3,000
Starting From
99
Active Listings
Avg Mileage

Sourced from 99 active dealer listings as of

Min $3,000
Max $24,900
From $3,000
Fresh

2018 GMC Sierra W/T Pricing

Price Trend

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Where to Find GMC Sierra W/T

Location data for all 2018 GMC Sierra trims combined

39States

13% of the market sits in Texas, though listings span 39 states. Expand your search and you'll find more options at better prices.

GMC Sierra Fuel Economy

EPA fuel economy data for all 2018 GMC Sierra trims

17–20mpg combined
·
15-18city
·
19-24hwy
·
$2,200-$3,400/yr

The 2018 GMC Sierra delivers 17 to 20 MPG combined across 14 powertrain combinations. If fuel cost matters to you, pay attention to engine and drivetrain. The spread is significant.

By Trim
Sierra 15 Hybrid 2WD - Automatic 8-spd
20mpg
5.3L 8-cyl · Rear-Wheel Drive
18 city24 hwy~$2,200/yr4/10 Average
Sierra C15 2WD - Automatic 6-spd
20mpg
4.3L 6-cyl · Rear-Wheel Drive
18 city24 hwy~$2,200/yr4/10 Average
Sierra C15 2WD - Automatic 6-spd
19mpg
5.3L 8-cyl · Rear-Wheel Drive
16 city23 hwy~$2,300/yr3/10 Poor
Sierra K15 4WD - Automatic 6-spd
19mpg
4.3L 6-cyl · 4-Wheel Drive
17 city22 hwy~$2,300/yr3/10 Poor
Sierra 15 Hybrid 4WD - Automatic 8-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city21 hwy~$2,450/yr3/10 Poor
Sierra C15 2WD - Automatic 8-spd
18mpg
5.3L 8-cyl · Rear-Wheel Drive
16 city22 hwy~$2,450/yr3/10 Poor
Sierra K15 4WD - Automatic 6-spd
18mpg
5.3L 8-cyl · 4-Wheel Drive
16 city22 hwy~$2,450/yr3/10 Poor
Sierra C15 2WD - Automatic 8-spd
17mpg
6.2L 8-cyl · Rear-Wheel Drive
15 city21 hwy~$3,400/yr3/10 Poor
Sierra C15 Cab Chassis 2WD - Automatic 6-spd
17mpg
5.3L 8-cyl · Rear-Wheel Drive
15 city20 hwy~$2,600/yr3/10 Poor
Sierra K15 4WD - Automatic 8-spd
17mpg
6.2L 8-cyl · 4-Wheel Drive
15 city20 hwy~$3,400/yr3/10 Poor
Sierra K15 4WD - Automatic 8-spd
17mpg
5.3L 8-cyl · 4-Wheel Drive
15 city20 hwy~$2,600/yr3/10 Poor
Sierra K15 Cab Chassis 4WD - Automatic 6-spd
17mpg
5.3L 8-cyl · 4-Wheel Drive
15 city19 hwy~$2,600/yr3/10 Poor

Source: U.S. Environmental Protection Agency (EPA)

2018 GMC Sierra W/T FAQ

Trim-specific pricing and feature questions

How does the W/T compare to other GMC Sierra trims?

Every GMC Sierra trim targets a different buyer. The 2018 model page compares all available trims side by side.

What should I know about maintaining the 2018 GMC Sierra W/T?

Maintenance costs for the W/T align with the broader GMC Sierra ownership experience, though trim-specific equipment can add to routine costs. Check the 2018 GMC Sierra page for the full breakdown.

What are the best years for the GMC Sierra W/T?

Check the price-to-mileage ratio for each GMC Sierra W/T year. The last year before a generation change is usually the most refined; the first year after is when resale drops fastest. The GMC Sierra overview compares all years side by side.

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