2015 head-to-head · Midsize & Large SUV
2015 Ford Flex vs Jeep Grand Cherokee Diesel
MPG, range and what each one really costs you to fuel, from official EPA ratings and recalculated with your own gas and electricity prices.
The 2015 Jeep Grand Cherokee Diesel is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, it costs about $2,220 a year to fuel (25 MPG), versus $2,325 for the 2015 Ford Flex (20 MPG). That's roughly $105 a year, or about $525 over five years.
Your numbers
Change these to match your driving and local prices. Every figure and chart on this page updates.
Fuel cost over 10 years
- Ford Flex
- Jeep Grand Cherokee Diesel
Side by side
| Ford Flex | Jeep Grand Cherokee Diesel | |
|---|---|---|
| $2,325 | Your annual fuel cost | $2,220 |
| 20 MPG | Combined efficiency | 25 MPG |
| 18 MPG | City | 22 MPG |
| 25 MPG | Highway | 30 MPG |
| 438 g/mi | Tailpipe CO₂ (g/mi) | 408 g/mi |
| 5/10 | EPA fuel economy score | 6/10 |
| 5/10 | EPA greenhouse gas score | 5/10 |
| Gas | Powertrain | Diesel |
| Regular gasoline | Fuel | Diesel |
| 3.5L 6-cyl | Engine / motor | 3.0L 6-cyl turbo |
| 6-speed automatic | Transmission | 8-speed automatic |
| FWD | Drivetrain | RWD |
✓ marks the better value. EPA scores run 1–10 (10 is best). Volumes come from the EPA interior volume index and aren't published for every body style.
Ford Flex vs Jeep Grand Cherokee Diesel across model years
- Ford Flex
- Jeep Grand Cherokee Diesel
Annual fuel cost of the most efficient configuration of each model year, at your prices. Click a point to open that year.
How they differ
Among 45 2015 midsize & large SUVs, the Ford Flex ranks 11th and the Jeep Grand Cherokee Diesel 7th for lowest fuel cost.
The powertrains differ: the Ford Flex is a conventional gas model, while the Jeep Grand Cherokee Diesel is a diesel.
Frequently asked questions
Which is more fuel-efficient, the 2015 Ford Flex or the 2015 Jeep Grand Cherokee Diesel?
Measured by cost to drive, the Jeep Grand Cherokee Diesel. The Ford Flex is rated 20 MPG combined and the Jeep Grand Cherokee Diesel 25 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2015 Ford Flex vs. the Jeep Grand Cherokee Diesel per year?
At 15,000 miles a year with $3.10/gal regular gas and $3.70/gal diesel fuel, about $2,325 for the Ford Flex and $2,220 for the Jeep Grand Cherokee Diesel.
Ford Flex vs Jeep Grand Cherokee Diesel in other years
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