INEOS Fuel Economy and Fuel Cost by Model
INEOS has 1 models with EPA fuel economy ratings between 2023 and 2025. In model year 2025 the combined ratings of its models run 15 MPG. The most efficient is the 2025 INEOS Grenadier at 15 MPG, about $5,370 a year to fuel at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Models
1
2023–2025
Most efficient, MY2025
15MPG
INEOS Grenadier
Cheapest to fuel, MY2025
$5,370/yr
INEOS Grenadier
Electrified models
0
hybrid, plug-in or electric
Most efficient INEOS models, MY2025
| 1 |  2025 INEOS Grenadier Standard SUVs | 15 | $5,370 |
All INEOS models
| Model | Model years | Powertrains | Latest MY | Combined | $/yr |
|---|---|---|---|---|---|
| INEOS Grenadier | 2023–2025 | Gas | 2025 | 14–15 | $5,370–$5,790 |
Ratings and costs are for each model's latest model year; costs use the current EIA price set and 15,000 miles a year.
INEOS by size class
- Standard SUVs: 1
Frequently asked questions
Which INEOS gets the best gas mileage?
In model year 2025, the most efficient INEOS is the 2025 INEOS Grenadier at 15 MPG combined.
What is the cheapest INEOS to fuel?
In model year 2025, the 2025 INEOS Grenadier is the cheapest INEOS to fuel: about $5,370 a year at 15,000 miles, using premium gasoline $5.36/gal (U.S. average, Sep 2026).
How many INEOS models does EPA rate?
EPA lists 1 INEOS models for model years 2023 to 2025. 1 of them have ratings for MY2025.
Does INEOS make hybrid or electric cars?
No. In EPA's database every INEOS model from 2023 to 2025 runs on gasoline or diesel only.