Does the 2026 Rivian R1S Dual Max (20in) need premium gas?
This is an electric model — no gasoline.
| Trim (engine / transmission) | Fuel | MPG | Fuel/yr |
|---|---|---|---|
| electric, A1 automatic, 4WD | ELECTRIC | 80 | $950 |
The EPA records the fuel each version was tested on. Whether premium is strictly required or just recommended is an owner's-manual detail the EPA dataset doesn't include — so we don't guess it.
1 trim(s) · EPA FuelEconomy.gov · retrieved 2026-06-14.