2018 Land Rover Discovery MPG & Specs — Real-World vs EPA, All Trims
Fuel grade varies by trim — see the breakdown below.
Is the 2018 Land Rover Discovery good on gas?
At up to 23 MPG combined, the 2018 Land Rover Discovery is better than average for a Standard Sport Utility Vehicle 4WD — that class averages about 18.9 MPG across 1,684 EPA-tested versions, so it's a good pick on fuel for its size.
Real-world MPG vs the EPA number
The EPA figures above come from a standardized dynamometer test, not the open road — real-world MPG typically runs a bit lower depending on your driving, climate and terrain. That's true of every car on this site, old or new.
At today's AAA national average price — $4.78/gal for diesel gas as of 2026-07-05 — the most efficient trim runs about $3,117/year (roughly $260/month, about $20.78 per 100 miles) at the EPA's assumed 15,000 miles/year, using an estimated 652 gallons a year. We don't estimate a cost-per-fill since exact tank size isn't in the public EPA dataset, but the per-100-mile figure scales to any tank. Current national average gas prices →
2018 Land Rover Discovery trims & fuel economy
| Trim (engine / transmission) | Fuel | MPG | Fuel/yr (today's price) |
|---|---|---|---|
| 3.0L 6-cyl, S8 automatic, 4WD | DIESEL | 23 | $3,117 |
| 3.0L 6-cyl, S8 automatic, 4WD | PREMIUM | 18 | $3,900 |
2018 Land Rover Discovery specs
What the EPA test-car listings record for this model year — every combination sold is a row in the trims table above.
| Engine options | 3.0L 6-cyl turbo · 3.0L 6-cyl supercharged |
| Transmission | S8 automatic |
| Drive type | 4WD |
| EPA body class | Standard Sport Utility Vehicle 4WD |
| Fuel | Varies by trim |
| Tailpipe CO₂ | 448–500 g/mi |
Other years of the Land Rover Discovery
Similar cars (Standard Sport Utility Vehicle 4WD)
Cars that take premium · Cheapest cars to fuel · Where fuel grade depends on the trim · Fuel guides
2 trim(s) · EPA FuelEconomy.gov data retrieved 2026-07-24 · fuel prices AAA national average as of 2026-07-05.