1989 · Subcompact Car · Gas
1989 Porsche 928 MPG & fuel economy
The 1989 Porsche 928 is a subcompact car offered in 3 EPA-rated configurations. The most efficient version returns 15 MPG combined (14 city / 17 highway) on premium gasoline. Across the lineup, combined ratings range from 14 to 15 MPG. That's down 1 MPG from the 1988 model. Among 61 subcompact cars rated for 1989, it ranks 54th for lowest fuel cost. At 15,000 miles a year with $3.95/gal premium gas, it costs about $3,950 a year to fuel.
What will it cost you?
Your mileage and prices are saved and used across the site.
Fuel average
The 1989 Porsche 928's fuel average is 6.4 km/L (15.7 L/100 km), or 15 MPG combined: 6.0 km/L in the city and 7.2 km/L on the highway.
| MPG | km/L | L/100 km | |
|---|---|---|---|
| City | 14 | 6.0 | 16.8 |
| Highway | 17 | 7.2 | 13.8 |
| Combined | 15 | 6.4 | 15.7 |
How it ranks among 1989 Subcompact Cars
Full class ranking →Annual fuel cost at 15,000 miles and default prices; shorter bars cost less.
928 MPG across model years
Full history →3 EPA-rated configurations
| Configuration | Type | City | Hwy | Combined | Range | Your cost / yr |
|---|---|---|---|---|---|---|
| RWD · 5.0L 8-cyl · 4-speed automatic 928 S4 |
Gas | 14 MPG | 17 MPG | 15 MPG | — | $3,950 |
| RWD · 5.0L 8-cyl · 5-speed manual 928 S4 |
Gas | 13 MPG | 20 MPG | 15 MPG | — | $3,950 |
| RWD · 5.0L 8-cyl · 5-speed manual 928 S4 |
Gas | 11 MPG | 18 MPG | 14 MPG | — | $4,232 |
Specs (most efficient configuration)
- Fuel
- Premium gasoline
- Engine / motor
- 5.0L 8-cyl
- Transmission
- 4-speed automatic
- Drivetrain
- RWD
- Passenger volume
- 74 cu ft
- Cargo volume
- 8 cu ft
- Tailpipe CO₂
- 592 g/mi
1989 Porsche 928 vs. rivals
Compare the 1989 928
With any other car from any year, including other 928 model years. Type a year to jump, e.g. "2015 Accord".
Frequently asked questions
What is the gas mileage of the 1989 Porsche 928?
Up to 15 MPG combined (14 city / 17 highway); ratings range from 14 to 15 MPG depending on configuration.
What fuel does the 1989 Porsche 928 use?
Premium gasoline (premium is required or recommended by the manufacturer).
What is the fuel average in km/L for the 1989 Porsche 928?
The 1989 Porsche 928's fuel average is 6.4 km/L (15.7 L/100 km), or 15 MPG combined: 6.0 km/L in the city and 7.2 km/L on the highway.
How much does it cost to fuel the 1989 Porsche 928 per year?
About $3,950 at 15,000 miles a year with $3.95/gal premium gas, or $26.33 per 100 miles. Use the calculator on this page to plug in your own mileage and prices.