1992 J.K. Motors MERC BENZ 300SE: MPG and fuel economy
The 1992 J.K. Motors MERC BENZ 300SE is rated by the U.S. Environmental Protection Agency at 15 combined MPG, with 14 MPG in the city and 16 MPG on the highway. That sits a little below the average car in the Midsize Cars class for the same model year.
This page collects every fuel-economy figure the EPA publishes for the 1992 J.K. Motors MERC BENZ 300SE. 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 2 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
- The most efficient car in the Midsize Cars class for the 1992 model year is the Buick Century at 22 MPG.
- EPA estimates this car costs around $9,250 more in fuel over five years than an average new vehicle of the same model year.
- Subject to the federal Gas Guzzler Tax, which applies to passenger cars rated below 22.5 combined MPG.
Fuel economy at a glance
These are the EPA's official ratings for the 1992 J.K. Motors MERC BENZ 300SE. 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 2 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 | 15 MPG |
| City MPG | 14 MPG |
| Highway MPG | 16 MPG |
| Annual fuel cost | $4,000 |
| Tailpipe CO₂ | 592 g/mi |
| Fuel type | Regular |
How the 1992 J.K. Motors MERC BENZ 300SE compares
The 1992 J.K. Motors MERC BENZ 300SE returns 15 combined MPG. Cars in the Midsize Cars class for the same model year average 16.9 MPG, which puts this car behind the class average by about 11%.
The most efficient car in the Midsize Cars class for the 1992 model year is the Buick Century at 22 MPG. The bar chart below puts the J.K. Motors MERC BENZ 300SE alongside the class best and the class average so you can see the full picture.
For broader context, the average new car of the 1992 model year (across all classes) returns 18.5 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 1992 model year is on its own page.
Trim variants rated for 1992
The EPA rates 2 separate variants of the 1992 J.K. Motors MERC BENZ 300SE. 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.
| Engine and transmission | Drive | Combined | City | Highway | Annual cost |
|---|---|---|---|---|---|
| 3L, 6-cyl, Automatic 4-spd | Rear-Wheel Drive | 15 MPG | 14 MPG | 16 MPG | $4,000 |
| 3L, 6-cyl, Automatic 4-spd | Rear-Wheel Drive | 15 MPG | 14 MPG | 16 MPG | $4,000 |
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 regular gasoline, which is $3.99/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 1000 gallons (the car's annual consumption at the rated MPG).
| Driving pattern | Estimated annual fuel cost |
|---|---|
| Light driver, 7,500 miles per year | $2,000 |
| Average driver, 15,000 miles per year | $4,000 |
| Heavy driver, 25,000 miles per year | $6,667 |
Year-over-year MPG for the J.K. Motors MERC BENZ 300SE
The EPA has rated the J.K. Motors MERC BENZ 300SE across 2 model years, from 1992 J.K. Motors MERC BENZ 300SE through 1993 J.K. Motors MERC BENZ 300SE. 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.
Combined MPG has stayed in roughly the same range across the run, hovering close to 15 MPG.
| Year | Combined MPG | Open year page |
|---|---|---|
| 1993 | 15 MPG | 1993 J.K. Motors MERC BENZ 300SE |
| 1992 | 15 MPG | this page |
Compare against other Midsize Cars for 1992
If you are cross-shopping the 1992 J.K. Motors MERC BENZ 300SE, the most useful comparison is against the other cars in the Midsize 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.
The Mazda 626/MX-6 leads this group at 24 MPG, 9 MPG ahead of the 1992 J.K. Motors MERC BENZ 300SE.
Specifications
The 1992 J.K. Motors MERC BENZ 300SE runs a 3-liter 6-cylinder engine paired with a automatic 4-spd, sending power through rear-wheel drive.
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
- Midsize Cars
- Engine
- 3L 6-cylinder
- Transmission
- Automatic 4-spd
- Drivetrain
- Rear-Wheel Drive
- Fuel type
- Regular
- Annual petroleum use
- 19.8 barrels per year
- Gas guzzler tax
- Applies (federal)
Common questions about the 1992 J.K. Motors MERC BENZ 300SE
Quick answers to the questions people most often search for when looking up the 1992 J.K. Motors MERC BENZ 300SE.
-
Is the 1992 J.K. Motors MERC BENZ 300SE fuel efficient?
Not particularly. The 1992 J.K. Motors MERC BENZ 300SE returns 15 combined MPG, which trails the average car in the Midsize Cars class for the same model year by about 11%. -
What MPG does the 1992 J.K. Motors MERC BENZ 300SE get?
The EPA rates the 1992 J.K. Motors MERC BENZ 300SE at 15 combined MPG, 14 MPG in city driving, and 16 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 1992 J.K. Motors MERC BENZ 300SE per year?
The EPA estimates an annual fuel cost of $4,000 for the 1992 J.K. Motors MERC BENZ 300SE. 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 1992 J.K. Motors MERC BENZ 300SE use?
The EPA lists the 1992 J.K. Motors MERC BENZ 300SE as running on regular gasoline. Using a different grade than the manufacturer specifies can affect fuel economy and engine longevity. -
How much CO₂ does the 1992 J.K. Motors MERC BENZ 300SE emit?
Tailpipe CO₂ emissions are 592 g/mi. Multiplied across a typical year of driving (15,000 miles) that works out to about 8,887 kilograms of CO₂. -
What is the difference between the city and highway MPG of the 1992 J.K. Motors MERC BENZ 300SE?
City driving returns 14 MPG and highway driving returns 16 MPG, a gap of 2 MPG. The two figures are close enough that the car will hold its rated efficiency well across most driving patterns. -
What engine is in the 1992 J.K. Motors MERC BENZ 300SE?
The 1992 J.K. Motors MERC BENZ 300SE has a 3-liter 6-cylinder engine (EPA description: (GUZZLER) (FFS)). -
What transmission and drivetrain does the 1992 J.K. Motors MERC BENZ 300SE have?
The 1992 J.K. Motors MERC BENZ 300SE comes with a automatic 4-spd transmission and rear-wheel drive. -
How does the 1992 J.K. Motors MERC BENZ 300SE compare to the best car in its class?
The most efficient car in the Midsize Cars class for the 1992 model year is the Buick Century at 22 combined MPG. The J.K. Motors MERC BENZ 300SE returns 15 MPG, a gap of 7 MPG. If you are comparing on fuel economy alone, the class leader is worth a look. -
Does the 1992 J.K. Motors MERC BENZ 300SE qualify for the gas guzzler tax?
Yes. The federal Gas Guzzler Tax applies to passenger cars rated below 22.5 combined MPG, and the 1992 J.K. Motors MERC BENZ 300SE falls below that threshold. The tax is paid by the manufacturer at the point of sale and is built into the sticker price, so you will not see a separate line item at the dealership. Pickup trucks and SUVs are exempt from this tax even when their efficiency is lower.
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.