Trim Report

GMC Sierra SLE2018

Includes:15SIPU4WD|SLE
$1,650
Starting From
4,915
Active Listings
Avg Mileage

Sourced from 4,915 active dealer listings as of

Min $1,650
Max $69,762
From $1,650
Fresh

2018 GMC Sierra SLE Pricing

Price Trend

Building price history...

Plenty of options. Let us narrow it down.

4,915 active listings means opportunity, but also overwhelm. Set your criteria and we'll surface the best matches.

Where to Find GMC Sierra SLE

Location data for all 2018 GMC Sierra trims combined

39States

Texas has the most inventory at 13%, with options spread across 39 states. Willing to ship? Your selection opens up significantly.

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)

Is the SLE Worth It?

Common questions about the 2018 GMC Sierra SLE

How does the SLE compare to other GMC Sierra trims?

with 4,915 listings tracked, the SLE sits in a specific spot in the 2018 GMC Sierra lineup. Compare pricing across all trims on the 2018 GMC Sierra page.

What should I know about maintaining the 2018 GMC Sierra SLE?

Budget for standard SLE maintenance plus any trim-specific items. Review the known issues on the model year page for areas to inspect before purchasing.

What are the best years for the GMC Sierra SLE?

The best model year for the GMC Sierra SLE comes down to the price-to-mileage ratio. Compare all years on the GMC Sierra overview.

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