Nissan Frontier PRO4X MPG by year — every rating on record
The Nissan Frontier PRO4X has a combined EPA fuel economy rating for 4 model years, from 2023 to 2026. Across those years its best rated version returned 19 mpg (2023) and its thirstiest returned 18 mpg (2023). The EPA record holds 5 configurations for this nameplate, most recently a Standard Pickup Trucks 4WD.
Year-by-year EPA ratings
| Model year | Configurations | Best combined | Worst combined | Class rank that year | Drivetrains | Fuel | EPA class |
|---|---|---|---|---|---|---|---|
| 2023 | 2 | 19 mpg | 18 mpg | #23 of 34 (33th pct) | Part-time 4-Wheel Drive | Regular | Standard Pickup Trucks 4WD |
| 2024 | 1 | 19 mpg | 19 mpg | #29 of 38 (24th pct) | Part-time 4-Wheel Drive | Regular | Standard Pickup Trucks 4WD |
| 2025 | 1 | 18 mpg | 18 mpg | #35 of 43 (19th pct) | Part-time 4-Wheel Drive | Regular | Standard Pickup Trucks 4WD |
| 2026 | 1 | 18 mpg | 18 mpg | #40 of 55 (28th pct) | Part-time 4-Wheel Drive | Regular | Standard Pickup Trucks 4WD |
Where it has stood in its class
Ranked against every other nameplate the EPA filed under the same class that year. The Nissan Frontier PRO4X placed highest in 2023 at #23 of 34, and lowest in 2026 at #40 of 55. It spent 0 of its 4 ranked years in the top half of its class.
Every configuration on record
All 5 configurations EPA lists for this nameplate, newest first.
| Year | Configuration | Engine detail | City | Highway | Combined | Gallons/yr | Barrels/yr | EPA fuel cost/yr | CO2 g/mi | GHG |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 3.8L 6-cyl Part-time 4-Wheel Drive Automatic (S9) Regular | SIDI, start-stop | 16 | 20 | 18 | 638.9 | 16.5 | $3,450 | 504 | 3/10 |
| 2025 | 3.8L 6-cyl Part-time 4-Wheel Drive Automatic (S9) Regular | SIDI, start-stop | 16 | 20 | 18 | 638.9 | 16.5 | $3,450 | 495 | 4/10 |
| 2024 | 3.8L 6-cyl Part-time 4-Wheel Drive Automatic (S9) Regular | SIDI, start-stop | 18 | 21 | 19 | 605.3 | 15.7 | $3,300 | 469 | 4/10 |
| 2023 | 3.8L 6-cyl Part-time 4-Wheel Drive Automatic (S9) Regular | SIDI | 16 | 21 | 18 | 638.9 | 16.5 | $3,450 | 472 | 4/10 |
| 2023 | 3.8L 6-cyl Part-time 4-Wheel Drive Automatic (S9) Regular | SIDI; ISS and AGS, start-stop | 17 | 21 | 19 | 605.3 | 15.7 | $3,300 | 469 | 4/10 |
How the rating has moved between model years
Comparing the best-rated configuration of each year. 0 of 1 year-over-year steps improved the top rating.
| Change | Best combined | Delta | Gallons a year at the newer rating |
|---|---|---|---|
| 2024 → 2025 | 19 → 18 mpg | -1 mpg | 639 gal |
What Frontier PRO4X fuel costs over a year
At the EPA's 11,500 miles a year, the 2026 Nissan Frontier PRO4X burns 639 to 639 gallons depending on configuration. Below is what that costs at three pump prices, and how much more the thirstiest configuration costs than the most efficient one.
| Pump price | Most efficient | Thirstiest | Spread |
|---|---|---|---|
| $3.00/gal | $1,917 | $1,917 | $0 |
| $3.50/gal | $2,236 | $2,236 | $0 |
| $4.00/gal | $2,556 | $2,556 | $0 |
EPA’s own estimate for the 2026 model year is $3,450 to $3,450 a year in fuel, or $6,000 more than the average new vehicle over five years.
How it compares with other Standard Pickup Trucks 4WD
Across the 90 nameplates EPA classifies as Standard Pickup Trucks 4WD, the median best combined rating is 19 mpg. At 18 mpg the Nissan Frontier PRO4X is 1 mpg below the median, which is worth about $118 a year at $3.50 a gallon.
- All Standard Pickup Trucks 4WD rankings — every nameplate in the class, best to worst.
Other Nissan nameplates
Every Nissan model compared → — all nameplates ranked by best combined rating, with what each one costs a year.