1999 · Subcompact Car · Gas
1999 Porsche 911 MPG & fuel economy
The 1999 Porsche 911 is a subcompact car offered in 4 EPA-rated configurations. The most efficient version returns 18 MPG combined (15 city / 23 highway) on premium gasoline. Across the lineup, combined ratings range from 17 to 18 MPG. Efficiency is unchanged from the 1998 model. Among 36 subcompact cars rated for 1999, it ranks 32nd for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,292 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1999 Porsche 911's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.4 km/L in the city and 9.8 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 15 | 6.4 | 15.7 |
| Highway | 23 | 9.8 | 10.2 |
| Combined | 18 | 7.7 | 13.1 |
How it ranks among 1999 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
911 MPG across model years
Full history →4 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 3.4L 6-cyl · 5-speed automatic 911 Carrera |
Gas | 15 MPG | 23 MPG | 18 MPG | — | $3,292 |
| RWD · 3.4L 6-cyl · 6-speed manual 911 Carrera |
Gas | 15 MPG | 23 MPG | 18 MPG | — | $3,292 |
| RWD · 3.4L 6-cyl · 5-speed automatic 911 Carrera |
Gas | 15 MPG | 22 MPG | 17 MPG | — | $3,485 |
| RWD · 3.4L 6-cyl · 6-speed manual 911 Carrera |
Gas | 15 MPG | 22 MPG | 17 MPG | — | $3,485 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 3.4L 6-cyl
- Transmission
- 5-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 70 cu ft
- Cargo volume
- 5 cu ft
- Tailpipe CO₂
- 494 g/mi
1999 Porsche 911 vs. rivals
Compare the 1999 911
With any other car from any year, including other 911 model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 1999 Porsche 911?
Up to 18 MPG combined (15 city / 23 highway); ratings range from 17 to 18 MPG depending on configuration.
What fuel does the 1999 Porsche 911 use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 1999 Porsche 911?
The 1999 Porsche 911's fuel average is 7.7 km/L (13.1 L/100 km), or 18 MPG combined: 6.4 km/L in the city and 9.8 km/L on the highway.
How much does it cost to fuel the 1999 Porsche 911 per year?
About $3,292 at 15,000 miles a year with $3.95/gal premium gas, or $21.94 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.