INEOS Automotive Grenadier Trialmaster Edition MPG by year — every rating on record
The INEOS Automotive Grenadier Trialmaster Edition has a combined EPA fuel economy rating for 3 model years, from 2023 to 2025. Across those years its best rated version returned 14 mpg (2023) and its thirstiest returned 14 mpg (2023). The EPA record holds 3 configurations for this nameplate, most recently a Standard Sport Utility Vehicle 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2023 | 1 | 14 mpg | 14 mpg | #135 of 139 (3th pct) | 4-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2024 | 1 | 14 mpg | 14 mpg | #161 of 166 (3th pct) | 4-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
| 2025 | 1 | 14 mpg | 14 mpg | #187 of 192 (3th pct) | 4-Wheel Drive | Premium | Standard Sport Utility Vehicle 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The INEOS Automotive Grenadier Trialmaster Edition placed highest in 2023 at #135 of 139, and lowest in 2025 at #187 of 192. It spent 0 of its 3 ranked years in the top half of its class.
Every configuration on record
All 3 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2025 | 3.0L 6-cyl 4-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 14 | 14 | 14 | 821.4 | 21.3 | $5,550 | 633 | 2/10 |
| 2024 | 3.0L 6-cyl 4-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 14 | 14 | 14 | 821.4 | 21.3 | $5,550 | 633 | 2/10 |
| 2023 | 3.0L 6-cyl 4-Wheel Drive Automatic (S8) Premium | SIDI, turbocharged, start-stop | 14 | 14 | 14 | 821.4 | 21.3 | $5,550 | 633 | 2/10 |
What Grenadier Trialmaster Edition fuel costs over a year
At the EPA's 11,500 miles a year, the 2025 INEOS Automotive Grenadier Trialmaster Edition burns 821 to 821 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $2,464 | $2,464 | $0 |
| $3.50/gal | $2,875 | $2,875 | $0 |
| $4.00/gal | $3,286 | $3,286 | $0 |
EPA’s own estimate for the 2025 model year is $5,550 to $5,550 a year in fuel, or $16,500 more than the average new vehicle over five years.
How it compares with other Standard Sport Utility Vehicle 4WD
Across the 317 nameplates EPA classifies as Standard Sport Utility Vehicle 4WD, the median best combined rating is 22 mpg. At 14 mpg the INEOS Automotive Grenadier Trialmaster Edition is 8 mpg below the median, which is worth about $1,045 a year at $3.50 a gallon.
- All Standard Sport Utility Vehicle 4WD rankings — every nameplate in the class, best to worst.
Where INEOS Automotive sits
INEOS Automotive has too few nameplates on record for a make-level page of its own, so this nameplate stands alone here. Every make we cover →