2018 head-to-head · Midsize & Large SUV
2018 Ford Flex vs Toyota 4Runner
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 2018 Ford Flex is the cheaper one to run. Driving 15,000 miles a year with $3.10/gal regular gas, it costs about $2,447 a year to fuel (19 MPG), versus $2,583 for the 2018 Toyota 4Runner (18 MPG). That's roughly $136 a year, or about $680 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
- Toyota 4Runner
Side by side
| Ford Flex | Toyota 4Runner | |
|---|---|---|
| $2,447 | Your annual fuel cost | $2,583 |
| 19 MPG | Combined efficiency | 18 MPG |
| 16 MPG | City | 17 MPG |
| 23 MPG | Highway | 21 MPG |
| 468 g/mi | Tailpipe CO₂ (g/mi) | 479 g/mi |
| 3/10 | EPA fuel economy score | 3/10 |
| 3/10 | EPA greenhouse gas score | 3/10 |
| Gas | Powertrain | Gas |
| Regular gasoline | Fuel | Regular gasoline |
| 3.5L 6-cyl | Engine / motor | 4.0L 6-cyl |
| 6-speed automatic | Transmission | 5-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 Toyota 4Runner across model years
- Ford Flex
- Toyota 4Runner
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 42 2018 midsize & large SUVs, the Ford Flex ranks 23rd and the Toyota 4Runner 26th for lowest fuel cost.
Frequently asked questions
Which is more fuel-efficient, the 2018 Ford Flex or the 2018 Toyota 4Runner?
Measured by cost to drive, the Ford Flex. The Ford Flex is rated 19 MPG combined and the Toyota 4Runner 18 MPG (EPA, most efficient configuration of each).
How much does it cost to fuel the 2018 Ford Flex vs. the Toyota 4Runner per year?
At 15,000 miles a year with $3.10/gal regular gas, about $2,447 for the Ford Flex and $2,583 for the Toyota 4Runner.
Ford Flex vs Toyota 4Runner in other years
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