Frontier 2WD — Gasoline · RWD · 3.8L 6-cyl · 21 MPG
2025 Nissan Frontier
Compare 3 EPA-tested configurations, including the exact powertrain, fuel, driven wheels, engine, transmission and efficiency data available for this model year.
Choose the closest tested configuration.
These entries distinguish powertrains and driveline combinations recorded by the U.S. EPA. They help narrow the vehicle, but they are not guaranteed retail trim or option-package names.
- Fuel
- Regular
- Engine
- SIDI
- Drive
- RWD
- Transmission
- Automatic (S9)
- EPA combined
- 21 MPG combined
- City / highway
- 19 / 24 MPG
- Electric motor
- Not listed
- Range
- Not listed
- 240 V charge time
- Not listed
- Secondary / blended economy
- Not listed
- EPA vehicle class
- Standard Pickup Trucks 2WD
- Stop-start system
- Yes
Frontier 2WD — Gasoline · RWD · 3.8L 6-cyl · 21 MPG selected.
Configuration is not the same as trim. EPA records can separate engines, fuel systems, transmissions or driven wheels without identifying badges such as LX, XLE or Touring. Confirm the retail trim with the window sticker, build sheet or manufacturer VIN portal.
Mechanical and efficiency differences.
All rows are visible in the page and link to their exact government record. EPA configurations identify tested hardware, not guaranteed retail trim names.
View all 3 EPA configuration rows
| EPA carline | Powertrain | Engine / motor | Drive | Transmission | Combined | Range / charge | Source |
|---|---|---|---|---|---|---|---|
| Frontier 2WD — Gasoline · RWD · 3.8L 6-cyl · 21 MPG | GasolineRegular | SIDI | RWD | Automatic (S9) | 21 MPG19 city / 24 highway | — | EPA record ↗ |
| Frontier 4WD — Gasoline · Part-time 4WD · 3.8L 6-cyl · 19 MPG | GasolineRegular | SIDI | Part-time 4WD | Automatic (S9) | 19 MPG17 city / 21 highway | — | EPA record ↗ |
| Frontier 4WD PRO4X — Gasoline · Part-time 4WD · 3.8L 6-cyl · 18 MPG | GasolineRegular | SIDI | Part-time 4WD | Automatic (S9) | 18 MPG16 city / 20 highway | — | EPA record ↗ |
What the official records cover.
Each option above is tied to a unique FuelEconomy.gov vehicle ID. EPA names sometimes expose a retail badge such as LE or Woodland Edition, but many records identify only the tested mechanical configuration.
Frontier 2WD, Frontier 4WD, Frontier 4WD PRO4X
Gasoline
RWD, Part-time 4WD
3.8L 6-cyl
Match the hardware before the badge.
- 1
Start with fuel and powertrain. Check whether the vehicle is gasoline, diesel, hybrid, plug-in hybrid, electric or fuel-cell.
- 2
Match driven wheels and engine. Use FWD, RWD, AWD or 4WD plus displacement/cylinder information from the window sticker or registration.
- 3
Confirm the exact EPA record. Select the closest option and open its FuelEconomy.gov link. Use a VIN-specific build sheet when you need the retail trim or option package.
Source: U.S. Department of Energy / EPA FuelEconomy.gov dataset ↗ · U.S. market snapshot 2026-11-04. Economy values are official estimates, not a promise of real-world consumption.
Before you try a feature: equipment, trim, powertrain, market and software can change availability. Open the guide and check its exact scope.
Features worth knowing.
Written instructions are primary. Videos appear only when we can match a useful clip to the feature and scope.
Retail trims and named packages are separate from equipment requirements. Equipment-only guides remain visible; confirm the final factory build from the window sticker or owner portal.
Activate Hill Descent Control
Select 4H or 4LO, stay within the manual's speed limit, and switch Hill Descent Control on before a steep low-speed descent.
Engage the Electronic Locking Rear Differential
Use E-Lock only to free a stuck PRO-4X after trying 4LO, and turn it off as soon as traction is restored.
Position a Utili-track Tie-Down Cleat
Insert the cleat squarely into a bed channel, rotate it 90 degrees, seat its nubs in the detents, and hand-tighten the center bolt.
Remote-Start the Frontier With the Intelligent Key
Lock the Frontier, then hold the remote-start button within five seconds to run the engine and equipped climate system before entry.
Shift the Frontier Between 2WD, 4H and 4LO
Use 4H for loose or slippery surfaces and follow the stop, Neutral and brake sequence before selecting or leaving 4LO.