The Nissan Frontier does 19.5 mpg combined (17.5 city, 22.1 highway), which works out to about $1,969 a year in fuel at $3.20 a gallon and 12,000 miles. Engine choice matters more than you'd think: 2.4L 4-cyl does 21.3 mpg while 3.3L 6-cyl does 16.3 — a difference of $553 a year. Against other V6 cars it sits below the average of 19.9 mpg.
Every Nissan Frontier engine, compared
Gas mileage on the Nissan Frontier ranges from 21.3 down to 16.3 depending on which engine sits under the bonnet — a spread of $553 a year across 5 versions of the same car. Picking the right one often saves more fuel than picking a different car altogether. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.4L 4-cyl | 20 / 23.7 | 1998–2004 | $1,803 | |
| 2.5L 4-cyl | 19 / 23 | 2005–2019 | $1,829 | |
| 3.8L 6-cyl | 18.3 / 24 | 2020–2026 | $1,864 | |
| 4L 6-cyl | 15.7 / 21.1 | 2005–2019 | $2,133 | |
| 3.3L 6-cyl | 14.7 / 18.2 | 1999–2004 | $2,356 |
What that actually costs
The Nissan Frontier burns a gallon every 19.5 miles, so 12,000 miles takes about 615 gallons a year. At $3.20 that is what the table below adds up to.
| Measure | Value |
|---|---|
| Cost per mile | $0.164 |
| Fuel per year | $1,969 |
| Fuel over five years | $9,845 |
| Against other V6 cars | +$39 a year |
| EPA's own estimate | $3,216 a year |
City or highway — who is this car for
The Nissan Frontier gives up 4.6 mpg the moment you leave the motorway — 22.1 out there against 17.5 in town, a 26% drop worth $456 a year. A wide gap punishes stop-and-start traffic; a narrow one means the car doesn't care where you drive it.
| Measure | Value | Reading |
|---|---|---|
| City | 17.5 mpg | $2,194 a year if you only drive in town |
| Highway | 22.1 mpg | $1,738 a year if you mostly commute |
| Gap | +4.6 mpg (26%) | Typical for its type |
How the Frontier changed over the years
The Frontier peaked in 1998 at 22 mpg (20 city, 24 highway) and was at its thirstiest in 2002 at 18.5 — 3.5 mpg apart, or $331 a year in fuel between buying one year and the other. The 2026 car does 21. Jumps usually mark a new generation or a new engine; dips often mean a heavier body or added all-wheel drive.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2026 | 19 / 24 | 1 | $1,829 | |
| 2025 | 19 / 24 | 1 | $1,829 | |
| 2024 | 18 / 24 | 1 | $1,829 | |
| 2023 | 18 / 24 | 1 | $1,829 | |
| 2022 | 18 / 24 | 1 | $1,920 | |
| 2021 | 18 / 24 | 1 | $1,920 | |
| 2020 | 18 / 24 | 1 | $1,920 | |
| 2019 | 17.5 / 23 | 2 | $1,920 | |
| 2018 | 17.5 / 23 | 2 | $1,920 | |
| 2017 | 17.5 / 23 | 2 | $1,920 | |
| 2016 | 18 / 22.5 | 2 | $1,920 | |
| 2015 | 18 / 22.5 | 2 | $1,920 | |
| 2014 | 17.5 / 22.5 | 2 | $1,920 | |
| 2013 | 17.5 / 22.5 | 2 | $1,920 | |
| 2012 | 17 / 21.5 | 2 | $2,021 | |
| 2011 | 17 / 21.5 | 2 | $2,021 | |
| 2010 | 17 / 21.5 | 2 | $2,021 | |
| 2009 | 17.5 / 21.5 | 2 | $1,969 | |
| 2008 | 17 / 21.5 | 2 | $2,021 | |
| 2007 | 17 / 21.5 | 2 | $2,021 | |
| 2006 | 17 / 21.5 | 2 | $2,021 | |
| 2005 | 17 / 21.5 | 2 | $2,021 | |
| 2004 | 17.5 / 22 | 2 | $1,969 | |
| 2003 | 17.5 / 21 | 2 | $2,021 | |
| 2002 | 17 / 20.5 | 2 | $2,076 | |
| 2001 | 17 / 21 | 2 | $2,076 | |
| 2000 | 17.5 / 20.5 | 2 | $2,076 | |
| 1999 | 17.5 / 20.5 | 2 | $2,076 | |
| 1998 | 20 / 24 | 1 | $1,745 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 50 EPA ratings of the Nissan Frontier — 5 engines across 1998–2026. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $3,216. Full method.
Frequently asked questions
What mpg does the Nissan Frontier get?
19.5 mpg combined on average — 17.5 in the city and 22.1 on the highway, per EPA ratings across 1998–2026.
How much does a Nissan Frontier cost in fuel per year?
About $1,969 at 12,000 miles and $3.20 a gallon — roughly $9,845 over five years, or 0.164 dollars a mile.
Which Frontier engine is the most economical?
The 2.4L 4-cyl at 21.3 mpg, against 16.3 for the 3.3L 6-cyl — a difference of about $553 a year.
Is the Frontier good on fuel compared with similar cars?
Against other V6 cars it sits below the average of 19.9 mpg, computed across 4940 ratings.
Are these real-world Frontier figures?
No — they are EPA laboratory ratings, the same ones printed on the window sticker, and EPA's own annual fuel estimate for the Nissan Frontier is $3,216 against the $1,969 we compute at 12,000 miles. Expect a little worse in practice: the spread between the 22 and 16 mpg versions of this car is smaller than the spread between two drivers of the same one.
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