2026 Rivian R1T All-Terrain Dual Max (20in) Specs
1 powertrain configuration on federal record for the 2026 Rivian R1T All-Terrain Dual Max (20in): Electricity, rated up to 78 MPG combined by the EPA.
Source: EPA federal records (fueleconomy.gov) · Updated 2026-10-26 · By CarWhere Research
| Engine | Transmission | Drivetrain | City | Highway | Combined |
|---|---|---|---|---|---|
| Electricity | Automatic (A1) | Part-time 4-Wheel Drive | 82 | 73 | 78 |
R1T All-Terrain Dual Max (20in) by year
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Frequently asked questions
What engines does the 2026 Rivian R1T All-Terrain Dual Max (20in) have?
One powertrain on federal record: Electricity, offered with Automatic (A1) and Part-time 4-Wheel Drive. The full per-configuration table is above.
What gas mileage does the 2026 Rivian R1T All-Terrain Dual Max (20in) get?
EPA combined ratings run 78–78 MPG depending on configuration — the table above shows city/highway/combined for each engine, transmission, and drivetrain.
How do I get the specs for my exact VIN?
These are the federal-record configurations for the 2026 Rivian R1T All-Terrain Dual Max (20in) overall. For one specific vehicle — its exact engine, trim, factory options, and original window sticker — decode the 17-character VIN free at carwhere.com/tools/vin-decoder.
Where does this data come from?
The U.S. EPA's public vehicle dataset (fueleconomy.gov) — the federal record of every US-market configuration since 1984 — refreshed 2026-10-26. Public-domain data; republish with attribution to CarWhere (carwhere.com).