1984 Nissan Sentra: MPG and fuel economy
The 1984 Nissan Sentra is rated by the U.S. Environmental Protection Agency at 41 combined MPG, with 37 MPG in the city and 46 MPG on the highway. That puts it well above the average for cars in the Subcompact Cars class in the same model year.
This page collects every fuel-economy figure the EPA publishes for the 1984 Nissan Sentra. Below you will find the headline combined, city, and highway MPG, the estimated annual fuel cost at three different driving levels, the tailpipe CO₂ emissions, and a full breakdown of the engine and drivetrain. The EPA rates 9 separate variants of this car (different engine, transmission, or drivetrain combinations), and you can compare them side by side in the trims table. If you want to know whether this generation got more or less efficient over the years, the year-over-year table further down covers every model year the EPA has rated.
Key takeaways
- Returns 82% better combined MPG than the average car in the Subcompact Cars class for the 1984 model year (22.5 MPG class average).
- The Nissan Sentra has lost 7 MPG since its first rated model year, the 1984 Nissan Sentra at 41 MPG. That is often a sign of larger engines or heavier curb weights in newer generations.
Fuel economy at a glance
These are the EPA's official ratings for the 1984 Nissan Sentra. The numbers come from a standardised laboratory test cycle and are the same figures that appear on the window sticker of every new car. Real-world mileage varies with driving style, weather, fuel quality, and how heavily loaded the car is.
When the EPA tests several variants of the same nameplate (for example, a front-wheel-drive version and an all-wheel-drive version), each gets its own rating. The figures shown here are the headline variant, taken as the configuration with the best combined MPG. The trims table further down covers all 9 variants side by side.
Combined MPG is a 55/45 weighted blend of the city and highway test cycles. The EPA uses it as the single number you can compare across the entire dataset, including hybrids and EVs (which use the equivalent MPGe figure).
| Combined MPG | 41 MPG |
| City MPG | 37 MPG |
| Highway MPG | 46 MPG |
| Annual fuel cost | $2,000 |
| Tailpipe CO₂ | 248 g/mi |
| Fuel type | Diesel |
How the 1984 Nissan Sentra compares
The 1984 Nissan Sentra returns 41 combined MPG. Cars in the Subcompact Cars class for the same model year average 22.5 MPG, which puts this car ahead of the class average by about 82%.
For broader context, the average new car of the 1984 model year (across all classes) returns 19.2 MPG. Larger vehicles pull the all-cars average down, so do not use that figure on its own to judge a small car or a hybrid. The full list of the most efficient cars of the 1984 model year is on its own page.
Trim variants rated for 1984
The EPA rates 9 separate variants of the 1984 Nissan Sentra. The differences come from the engine size, transmission type, and drivetrain (front-wheel drive, all-wheel drive, and so on). The same nameplate can land several MPG apart depending on the configuration you actually buy.
The most efficient configuration on this page returns 41 MPG, while the least efficient returns 25 MPG. That is a spread of 16 MPG between trims of the same nameplate.
| Engine and transmission | Drive | Combined | City | Highway | Annual cost |
|---|---|---|---|---|---|
| 1.7L, 4-cyl, Manual 4-spd | — | 41 MPG | 37 MPG | 46 MPG | $2,000 |
| 1.7L, 4-cyl, Manual 4-spd | — | 40 MPG | 38 MPG | 44 MPG | $2,000 |
| 1.7L, 4-cyl, Manual 5-spd | — | 37 MPG | 33 MPG | 42 MPG | $2,200 |
| 1.7L, 4-cyl, Manual 5-spd | — | 36 MPG | 33 MPG | 41 MPG | $2,250 |
| 1.6L, 4-cyl, Manual 5-spd | — | 30 MPG | 27 MPG | 35 MPG | $2,000 |
| 1.7L, 4-cyl, Automatic 3-spd | — | 30 MPG | 29 MPG | 31 MPG | $2,700 |
| 1.6L, 4-cyl, Manual 5-spd | — | 30 MPG | 27 MPG | 35 MPG | $2,000 |
| 1.6L, 4-cyl, Automatic 3-spd | — | 25 MPG | 23 MPG | 28 MPG | $2,400 |
| 1.6L, 4-cyl, Automatic 3-spd | — | 25 MPG | 23 MPG | 28 MPG | $2,400 |
Annual fuel cost across driving patterns
The headline annual fuel cost the EPA publishes assumes 15,000 miles of driving per year and a fuel mix of 55% city and 45% highway. The dollar figure is calculated using the EPA's current reference price for diesel, which is $5.40/gallon. EPA updates that reference periodically rather than tracking live pump prices, so treat it as a window-sticker estimate rather than today's pump number.
The table below scales the EPA's number to three common driving patterns. The combined MPG and the reference fuel price stay constant, only the annual mileage changes. To get a current-prices estimate, take your local gas price and multiply by 365.9 gallons (the car's annual consumption at the rated MPG).
| Driving pattern | Estimated annual fuel cost |
|---|---|
| Light driver, 7,500 miles per year | $1,000 |
| Average driver, 15,000 miles per year | $2,000 |
| Heavy driver, 25,000 miles per year | $3,333 |
Year-over-year MPG for the Nissan Sentra
The EPA has rated the Nissan Sentra across 37 model years, from 1984 Nissan Sentra through 2025 Nissan Sentra. The numbers below are the best combined MPG figure the EPA published for each year, which lets you see when the car was at its most efficient and how recent generations stack up.
The 1984 Nissan Sentra returned 41 MPG. The most recent 2025 Nissan Sentra returns 34 MPG. That is a drop of 7 MPG over 41 model years. Newer trims that grow heavier or carry larger engines tend to lose efficiency even as the rest of the lineup improves.
Compare against other Subcompact Cars for 1984
If you are cross-shopping the 1984 Nissan Sentra, the most useful comparison is against the other cars in the Subcompact Cars class for the same model year. The list below shows the highest-MPG peers, ranked from most to least efficient. Click any of them to open its full page.
Specifications
The 1984 Nissan Sentra runs a 1.7-liter 4-cylinder engine paired with a manual 4-spd.
Engine, transmission, and drivetrain together drive most of the variation in fuel economy across trims. A larger engine moves the car with less effort but burns more fuel. A turbo lets a small engine punch above its weight, often without much MPG penalty. All-wheel drive adds traction and weight, and usually costs a couple of MPG compared with two-wheel drive of the same engine.
- Vehicle class
- Subcompact Cars
- Engine
- 1.7L 4-cylinder
- Transmission
- Manual 4-spd
- Fuel type
- Diesel
- Annual petroleum use
- 8.7 barrels per year
Common questions about the 1984 Nissan Sentra
Quick answers to the questions people most often search for when looking up the 1984 Nissan Sentra.
-
Is the 1984 Nissan Sentra fuel efficient?
Yes. The 1984 Nissan Sentra returns 41 combined MPG, which beats the average car in the Subcompact Cars class for the same model year by about 82%. -
What MPG does the 1984 Nissan Sentra get?
The EPA rates the 1984 Nissan Sentra at 41 combined MPG, 37 MPG in city driving, and 46 MPG on the highway. Real-world numbers depend on your driving style, the weather, and how loaded the car is. -
How much does it cost to fuel a 1984 Nissan Sentra per year?
The EPA estimates an annual fuel cost of $2,000 for the 1984 Nissan Sentra. That figure assumes 15,000 miles of driving per year, a 55% city and 45% highway split, and the EPA's published average fuel price for the rated fuel grade. -
What fuel does the 1984 Nissan Sentra use?
The EPA lists the 1984 Nissan Sentra as running on diesel. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity. -
Has the Nissan Sentra become more fuel efficient over time?
Combined MPG has actually slipped. The first EPA-rated Nissan Sentra, the 1984 Nissan Sentra, returned 41 MPG, while the most recent 2025 Nissan Sentra returns 34 MPG. A drop of 7 MPG usually traces back to bigger engines or heavier curb weights in newer trims. -
How much CO₂ does the 1984 Nissan Sentra emit?
Tailpipe CO₂ emissions are 248 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 3,724 kilograms of CO₂. -
What is the difference between the city and highway MPG of the 1984 Nissan Sentra?
City driving returns 37 MPG and highway driving returns 46 MPG, a gap of 9 MPG. A spread that wide is typical of cars with conventional automatic or manual transmissions, where stop-start city traffic eats more fuel than a steady highway cruise. -
What engine is in the 1984 Nissan Sentra?
The 1984 Nissan Sentra has a 1.7-liter 4-cylinder engine (EPA description: (DIESEL)). -
What transmission and drivetrain does the 1984 Nissan Sentra have?
The 1984 Nissan Sentra comes with a manual 4-spd transmission. -
How much petroleum does the 1984 Nissan Sentra use per year?
The EPA estimates the 1984 Nissan Sentra consumes about 8.7 barrels of petroleum per year, based on the standard 15,000 miles of driving. A barrel is 42 U.S. gallons of crude oil, which is refined into gasoline plus other products.
Source: U.S. EPA fuel economy dataset. Annual fuel cost figures assume 15,000 miles of driving per year and a 55% city, 45% highway split. Real-world mileage varies with driving conditions, vehicle maintenance, fuel quality, and driver behaviour.