2021 Jeep Gladiator EcoDiesel

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
| Spec | Value |
|---|---|
| Combined MPG | 24 combined MPG |
| City MPG | 22 |
| Highway MPG | 28 |
| Body Style | Truck |
| Fuel Type | Diesel |
| Drive | 4WD |
| Available Trims | 1 |
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.
Compare the 2021 Jeep Gladiator EcoDiesel
See how it stacks up against similar vehicles:
Other Model Years
- 2023 Jeep Gladiator EcoDiesel
- 2022 Jeep Gladiator EcoDiesel
- 2021 (this page)
Check Vehicle History
Considering a used Jeep Gladiator EcoDiesel? Get a comprehensive vehicle history report including accident records, ownership history, and more.
🔍 Check Jeep Gladiator EcoDiesel Vehicle History
Check VIN →
Check Vehicle History
Check VINGet the full story — accidents, ownership, recalls, odometer, and more. Decode any VIN instantly.