1992 J.K. Motors 300SL MERC BENZ MPG & Specs — Real Fuel Cost
Quick answer
The 1992 J.K. Motors 300SL MERC BENZ gets an EPA-estimated 14/16 MPG (city/highway) and 15 MPG combined, with an estimated $4,100/year fuel cost and 592.467 g/mi CO₂. Engine: 3 L 6-cyl.
The 1992 J.K. Motors 300SL MERC BENZ with the 3-liter 6-cylinder regular gasoline engine returns an EPA-estimated 14 MPG in the city and 16 MPG on the highway, for a combined 15 MPG. This page summarizes the official EPA fuel-economy and emissions data for this configuration.
| Engine | 3 L 6-cyl |
| Transmission | Automatic 4-spd |
| Drive | Rear-Wheel Drive |
| Fuel type | Regular Gasoline |
| Vehicle class | Two Seaters |
| MPG — city | 14 |
| MPG — highway | 16 |
| MPG — combined | 15 |
| Annual fuel cost* | $4,100 |
| CO₂ tailpipe | 592.467 g/mi |
| EPA GHG score | — |
How efficient is it?
With a combined 15 MPG, the 1992 J.K. Motors 300SL MERC BENZ sits in the low range for fuel economy. That is roughly 25% thirstier than the typical Two Seaters of its era (20 MPG class average) — expect higher fuel bills than class-average alternatives.
Fuel economy and running costs
At about $4,100 per year in fuel (EPA estimate, 15,000 mi/yr), fuel is a major part of the cost of owning the 1992 J.K. Motors 300SL MERC BENZ. Over five years that is roughly $20,500 at today's prices — before insurance, maintenance, and depreciation.
Emissions
The 1992 J.K. Motors 300SL MERC BENZ emits approximately 592.467 grams of CO₂ per mile at the tailpipe. Lower emissions generally track higher fuel economy.
How to read these numbers
EPA figures come from standardized laboratory test cycles and are the same estimates shown on the vehicle's window sticker. Your real-world mileage depends on driving style, conditions, fuel grade, and maintenance. Use combined MPG and annual fuel cost to compare vehicles fairly.