The Jeep Gladiator miles per gallon depends on the engine you have in your truck.
The 3.0 L EcoDiesel engine in the Jeep Gladiator gets 22 mpg city and 28 mpg highway and the 3.6 L Pentastar engine gets 16 mpg city and 23 mpg highway (manual) and 17 mpg city, 22 mpg highway (automatic).
This information applies to the 2023-2020 Jeep Gladiator trucks.
| MPG city/highway/combined | Range per Tank | |
| 3.0 L EcoDiesel | 22/28/24 | 418-532 miles |
| 3.6 L Pentastar Automatic | 17/22/19 | 374-484 miles |
| 3.6 L Pentastar Manual | 16/23/19 | 352-506 miles |
Jeep Gladiator Miles Per Gallon by Engine
3.0 L EcoDiesel Engine MPG
The 3.0 L Ecodiesel engine is an optional engine available in the Jeep Gladiator.
It provides 260 hp and 442 lb.-ft of torque.
This engine in all trims gets 22 mpg city and 28 mpg highway and 24 mpg combined.
3.6 L Pentastar Engine MPG
The 3.6 L Pentastar engine in the Jeep Gladiator is the standard engine that comes equipped in all new Gladiators.
This engine can provide 285 hp and 260 lb.-ft of torque.
This engine is available in both manual and automatic transmissions which slightly alter the miles per gallon.
Though both transmissions have a combined mpg of 19, the manual transmission has a 16/23 city/highway mpg and the automatic transmission has a 17/22 city/highway mpg.
Jeep Gladiator Range (Miles per Tank)
We can estimate the range of a Jeep Gladiator per fill up by using the size of the fuel tank and the estimated fuel efficiency.
By knowing the estimated fuel efficiency (miles per gallon) we can multiply that by the fuel tank (number of gallons) to get the number of miles that likely can be traveled with a full tank of gas on the Jeep Gladiator.
3.0 L EcoDiesel Engine Range
The 3.0 L EcoDiesel engine comes with a fuel tank of 19 gallons.
This means that the 3.0 L EcoDiesel on the Jeep Gladiator can drive an estimate 418-532 miles per full tank of gas.
3.6 L Pentastar Engine Range
The 3.6 L Pentastar engine comes with a fuel tank of 22 gallons.
This means that the 3.6 L Pentastar engine in the Jeep Gladiator can drive and estimated 352-506 miles per fill up.
What Impacts Fuel Efficiency?
The fuel efficiency provided in this document is given by estimated values from the manufacturer and what you MAY expect to get on average. However, this isn’t the exact gas mileage you will necessary get when driving. So we will discuss some of the major factors
Cargo/Towing
With pickup trucks, it is not unusual to have excess cargo in the bed of your truck or be towing some kind of trailer.
This is probably going to have one of the biggest impacts on fuel efficiency.
The more power required to move the heavier load, the more gas will be consumed to go the same distance.
Driving Behavior
Driving behaviors such as accelerating speed, cruise control, and braking patterns can have an impact on mpg.
For example, a car that accelerates too quickly will use more energy to get up to speed.
Similarly, if you find yourself braking more frequently rather than cruising while driving, you will find yourself using more gas.
Road Conditions
Then of course the road conditions will have an impact on this as well. Hills, swervy roads, and even poor road conditions can impact mpg, usually reducing fuel efficiency.
Summary
| MPG city/highway/combined | Range per Tank | |
| 3.0 L EcoDiesel | 22/28/24 | 418-532 miles |
| 3.6 L Pentastar Automatic | 17/22/19 | 374-484 miles |
| 3.6 L Pentastar Manual | 16/23/19 | 352-506 miles |
