How many MPG does a 2026 Rivian R1S All-Terrain Tri Max get?

The 2026 Rivian R1S All-Terrain Tri Max gets 68 MPG combined according to the EPA — about 72 MPG in the city and 63 MPG on the highway. Combined MPG is a 55% city / 45% highway blend.

What is the annual fuel cost for a 2026 Rivian R1S All-Terrain Tri Max?

Driving 15,000 miles a year at 68 MPG combined, the 2026 Rivian R1S All-Terrain Tri Max uses about 221 gallons of fuel per year — roughly $774 at $3.50/gallon. Your real cost varies with local gas prices and driving style.

What is the difference between city and highway MPG on the 2026 Rivian R1S All-Terrain Tri Max?

The 2026 Rivian R1S All-Terrain Tri Max returns 72 MPG city and 63 MPG highway. Highway is higher because steady-speed cruising avoids the stop-and-go acceleration that burns fuel in city driving. The 68 MPG combined figure blends the two.

Is 68 MPG good for a standard sport utility vehicle 4wd?

For a standard sport utility vehicle 4wd, 68 MPG combined is very efficient. Hybrid powertrains push this higher.

2026 Rivian R1S All-Terrain Tri Max MPG

Official EPA fuel-economy rating for the 2026 Rivian R1S All-Terrain Tri Max.

EPA combined fuel economy

68MPG

combined (55% city / 45% hwy)

City

MPG

Highway

MPG

Engine

—

Cylinders

—

Drive

4WD

Class

Standard Sport Utility Vehicle 4WD

Running cost

Estimated annual fuel cost

Per year

$774

15,000 mi/yr

Fuel used

221 gal

per year

At gas price

$3.50

per gallon

Based on 68 MPG combined and 15,000 miles per year. Adjust for your local gas price and annual mileage.

Other Rivian R1S All-Terrain Tri Max years

2025 All years →

FAQ

2026 Rivian R1S All-Terrain Tri Max

How many MPG does a 2026 Rivian R1S All-Terrain Tri Max get?: The 2026 Rivian R1S All-Terrain Tri Max gets 68 MPG combined according to the EPA — about 72 MPG in the city and 63 MPG on the highway. Combined MPG is a 55% city / 45% highway blend.
What is the annual fuel cost for a 2026 Rivian R1S All-Terrain Tri Max?: Driving 15,000 miles a year at 68 MPG combined, the 2026 Rivian R1S All-Terrain Tri Max uses about 221 gallons of fuel per year — roughly $774 at $3.50/gallon. Your real cost varies with local gas prices and driving style.
What is the difference between city and highway MPG on the 2026 Rivian R1S All-Terrain Tri Max?: The 2026 Rivian R1S All-Terrain Tri Max returns 72 MPG city and 63 MPG highway. Highway is higher because steady-speed cruising avoids the stop-and-go acceleration that burns fuel in city driving. The 68 MPG combined figure blends the two.
Is 68 MPG good for a standard sport utility vehicle 4wd?: For a standard sport utility vehicle 4wd, 68 MPG combined is very efficient. Hybrid powertrains push this higher.

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