INEOS Automotive MPG by Model
See INEOS Automotive MPG for its one current model, with a link to its year-by-year EPA ratings.
INEOS Automotive Models and Their EPA Ratings
The EPA has rated 6 INEOS Automotive vehicles since 2023, and these are the models with ratings from 2024 or later. Each one links to its full page with every engine, drivetrain and model year. The latest-year column shows the spread from the least to the most efficient version that year.
| Model | Rated years | Powertrains | Latest year, combined | Best ever |
|---|---|---|---|---|
| Grenadier | 2023-2025 | Gas | 2025: 14-15 MPG | 15 MPG |
INEOS Automotive MPG Questions
Which INEOS Automotive gets the best gas mileage?
Among 2025 models, the Grenadier has the best EPA rating at 15 MPG combined (15 city, 15 highway).
Keep Going
Where These Numbers Come From
This INEOS Automotive page was put together by Cedrick Reese from the EPA fuel economy file published on fueleconomy.gov. The model list and every rating on it are generated from that file, so nothing is typed in by hand. Each model page shows the individual EPA records behind these numbers, with a link to each one. When the EPA posts an updated file, this page and the INEOS Automotive model pages are rebuilt from it.
Ratings on this page come from the EPA file downloaded on October 1, 2026.
Sources
- Download Fuel Economy Data, fueleconomy.gov, U.S. DOE and EPA