2027 Rivian R1T Premium Long Range (20in AT) MPG & Specs — Real-World vs EPA, All Trims
This is an electric model — no gasoline.
Is the 2027 Rivian R1T Premium Long Range (20in AT) good on gas?
At up to 78 MPG combined, the 2027 Rivian R1T Premium Long Range (20in AT) is better than average for a Standard Pickup Trucks 4WD — that class averages about 16.5 MPG across 1,591 EPA-tested versions, so it's a good pick on fuel for its size.
Real-world MPG vs the EPA number
The EPA figures above come from a standardized dynamometer test, not the open road — real-world MPG typically runs a bit lower depending on your driving, climate and terrain. That's true of every car on this site, old or new.
For its most efficient trim, the EPA estimates about $950 a year in fuel (15,000 miles) — roughly $79 a month.
2027 Rivian R1T Premium Long Range (20in AT) trims & fuel economy
| Trim (engine / transmission) | Fuel | MPG | Fuel/yr (today's price) |
|---|---|---|---|
| electric, A1 automatic, 4WD | ELECTRIC | 78 | $950 |
2027 Rivian R1T Premium Long Range (20in AT) specs
What the EPA test-car listings record for this model year — every combination sold is a row in the trims table above.
| Engine options | Electric |
| Transmission | A1 automatic |
| Drive type | 4WD |
| EPA body class | Standard Pickup Trucks 4WD |
| Fuel | Electric |
Similar cars (Standard Pickup Trucks 4WD)
Cars that take premium · Cheapest cars to fuel · Where fuel grade depends on the trim · Fuel guides
1 trim(s) · EPA FuelEconomy.gov data retrieved 2026-10-25 · fuel prices AAA national average as of 2026-07-05.