INEOS Automotive Grenadier MPG & Fuel Economy
The 2025 INEOS Automotive Grenadier gets up to 15 MPG combined (15 city / 15 highway) in EPA testing.
Latest model year (2025):
The INEOS Automotive Grenadier gets up to 15 MPG combined (15 city / 15 highway) in the Auto (S8), 6 cyl, 3.0 L trim.
INEOS Automotive Grenadier MPG — All Years
| Year | Trim | Engine | Fuel | City (MPG) | Hwy (MPG) | Combined (MPG) |
|---|---|---|---|---|---|---|
| 2025 | Auto (S8), 6 cyl, 3.0 L | 6 3.0L | Premium Gasoline | 15 | 15 | 15 |
| 2025 | Auto (S8), 6 cyl, 3.0 L | 6 3.0L | Premium Gasoline | 14 | 14 | 14 |
| 2024 | Auto (S8), 6 cyl, 3.0 L | 6 3.0L | Premium Gasoline | 15 | 15 | 15 |
| 2024 | Auto (S8), 6 cyl, 3.0 L | 6 3.0L | Premium Gasoline | 14 | 14 | 14 |
| 2023 | Auto (S8), 6 cyl, 3.0 L | 6 3.0L | Premium Gasoline | 15 | 15 | 15 |
| 2023 | Auto (S8), 6 cyl, 3.0 L | 6 3.0L | Premium Gasoline | 14 | 14 | 14 |
Data sourced from fueleconomy.gov (U.S. Department of Energy). MPG figures are EPA-tested. Fuel costs are estimates based on average fuel prices and 15,000 miles/year.
INEOS Automotive Grenadier MPG FAQ
What is the MPG of the INEOS Automotive Grenadier?
The INEOS Automotive Grenadier gets up to 15 MPG combined (15 city / 15 highway) in the 2025 model year. Fuel economy varies by engine and trim — see the full table above for details.
Which INEOS Automotive Grenadier trim has the best fuel economy?
The Auto (S8), 6 cyl, 3.0 L trim offers the best combined fuel economy at 15 MPG. Smaller engines and front-wheel-drive configurations typically achieve the highest MPG.