2021 Jeep Gladiator EcoDiesel

Truck Diesel
Jeep Gladiator EcoDiesel 2021
24MPG Combined
1 Trim
2021 2022 →
Updated February 27, 2026

Get the full picture on the 2021 Jeep Gladiator EcoDiesel. As a Truck, it achieves 24 combined MPG and has not yet been rated by NHTSA. Below you’ll find detailed specs for every trim, plus recall information and competitor comparisons.

2021 Jeep Gladiator EcoDiesel Specifications

SpecValue
Combined MPG24 combined MPG
City MPG22
Highway MPG28
Body StyleTruck
Fuel TypeDiesel
Drive4WD
Available Trims1

Annual Fuel Cost

Based on EPA estimates, the 2021 Jeep Gladiator EcoDiesel costs approximately $2,300 per year in fuel. This assumes 15,000 miles driven annually and current fuel prices.

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