The Nissan 240SX does 21.3 mpg combined (18.8 city, 24.9 highway), which works out to about $1,803 a year in fuel at $3.20 a gallon and 12,000 miles. Against other 4-cyl cars it sits below the average of 25.4 mpg.
Every Nissan 240SX engine, compared
Picking the right version of the same car 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 | 18.8 / 24.9 | 1989–1998 | $1,803 |
What that actually costs
Miles per gallon is an abstraction; the fuel bill is not. Here it is in money, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Cost per mile | $0.150 |
| Fuel per year | $1,803 |
| Fuel over five years | $9,015 |
| Against other 4-cyl cars | +$291 a year |
| EPA's own estimate | $3,470 a year |
City or highway — who is this car for
The gap between city and highway figures tells you whom the car suits. 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 | 18.8 mpg | $2,043 a year if you only drive in town |
| Highway | 24.9 mpg | $1,542 a year if you mostly commute |
| Gap | +6.1 mpg (32%) | Wide — this car dislikes traffic |
How the 240SX changed over the years
Combined figure by model year. 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 |
|---|---|---|---|---|
| 1998 | 20 / 25 | 1 | $1,745 | |
| 1997 | 19 / 26 | 1 | $1,745 | |
| 1996 | 19 / 26 | 1 | $1,745 | |
| 1995 | 19 / 26 | 1 | $1,745 | |
| 1994 | 18 / 23 | 1 | $1,920 | |
| 1993 | 19 / 26 | 1 | $1,745 | |
| 1992 | 19 / 25 | 1 | $1,829 | |
| 1991 | 19 / 26 | 1 | $1,745 | |
| 1990 | 18 / 23 | 1 | $1,920 | |
| 1989 | 18 / 23 | 1 | $1,920 |
MPG is a number. Dollars per year is the answer.
- Fuel profile built from your actual mileage and local prices
- Fuel tracker: what you really spend, month by month
- Insurance and fuel folded into 5-year cost to own
- Compare any two cars on total cost, not sticker price
- No ads, no tracking — and much more
How we count
Fuel-economy figures come from EPA fueleconomy.gov — the same laboratory numbers printed on the window sticker. We don't adjust them; real-world consumption depends on how and where you drive.
What we add is money. Yearly cost assumes 12,000 miles at $3.20 a gallon — change either and the ranking stays, only the size of the bill moves. Cost per mile is the same figure divided out, useful when comparing a commute against a weekend car.
Frequently asked questions
What mpg does the Nissan 240SX get?
21.3 mpg combined on average — 18.8 in the city and 24.9 on the highway, per EPA ratings across 1989–1998.
How much does a Nissan 240SX cost in fuel per year?
About $1,803 at 12,000 miles and $3.20 a gallon — roughly $9,015 over five years, or 0.150 dollars a mile.
Which 240SX engine is the most economical?
The 2.4L 4-cyl at 21.3 mpg.
Is the 240SX good on fuel compared with similar cars?
Against other 4-cyl cars it sits below the average of 25.4 mpg, computed across 6877 ratings.
Are these real-world figures?
No — they are EPA laboratory ratings, the same ones on the window sticker. Real consumption depends on driving style, terrain, load and weather, and is typically a little worse.