2018 GMC Yukon K1500 Xl

SUV Premium
GMC Yukon K1500 Xl 2018
18MPG Combined
3 Trims
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Updated February 27, 2026

Get the full picture on the 2018 GMC Yukon K1500 Xl. As a SUV, it achieves 16–18 combined MPG depending on trim and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2018 GMC Yukon K1500 Xl Specifications

SpecValue
Combined MPG16–18 combined MPG depending on trim
City MPG15
Highway MPG22
Body StyleSUV
Fuel TypePremium
Drive4WD
Available Trims3

Available Trims

TrimMPG (City/Hwy/Combined)EngineTransmission
Auto14/21/166.2L 8cylAutomatic 10-spd
Auto15/22/185.3L 8cylAutomatic 6-spd
Auto15/22/185.3L 8cylAutomatic 6-spd

Annual Fuel Cost

Based on EPA estimates, the 2018 GMC Yukon K1500 Xl costs approximately $2,850 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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