Against 167 other V8 cars rated 1993–1995, the 928 sits right on their 15.2 mpg average. Averaged over the years each was sold, the most economical engine since 1984, the 5L 8-cyl (1986–1991), does 15.7 mpg and the thirstiest, the 5.4L 8-cyl (1993–1995), 15: $114 a year apart.
Every Porsche 928 engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 5L 8-cyl | 14.5 / 18.7 | 1986–1991 | $2,446 | |
| 4.7L 8-cyl | 14 / 18 | 1984–1984 | $2,560 | |
| 5.4L 8-cyl | 14 / 17 | 1993–1995 | $2,560 |
What that actually costs
| Measure | Value |
|---|---|
| Cost per mile (1995) | $0.213 |
| Fuel per year | $2,560 |
| Fuel over five years | $12,800 |
| Against other V8 cars, 1993–1995 | +$34 a year |
| EPA's own estimate | $4,920 a year |
City or highway — who is this car for
The 1995 Porsche 928 gives up 3 mpg in town: 17 on the highway against 14 in the city, $484 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (1995) | 14 mpg | $2,743 a year if you only drive in town |
| Highway | 17 mpg | $2,259 a year if you mostly commute |
| Gap | +3 mpg (21%) | Typical for its type |
How the 928 changed over the years
The 928 peaked in 1986 at 17 mpg (15 city, 21 highway) and was at its thirstiest in 1995 at 15 — 2 mpg apart, or $301 a year in fuel between buying one year and the other. The 1995 car does 15.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 1995 | 14 / 17 | 1 | $2,560 | |
| 1994 | 14 / 17 | 1 | $2,560 | |
| 1993 | 14 / 17 | 1 | $2,560 | |
| 1991 | 14 / 17 | 1 | $2,560 | |
| 1990 | 14 / 17 | 1 | $2,560 | |
| 1989 | 14 / 17 | 1 | $2,560 | |
| 1988 | 15 / 20 | 1 | $2,400 | |
| 1987 | 15 / 20 | 1 | $2,400 | |
| 1986 | 15 / 21 | 1 | $2,259 | |
| 1984 | 14 / 18 | 1 | $2,560 |
MPG is a number. Dollars per year is the answer.
- Fuel profile built from your actual mileage and local prices
- Fuel tracker: what you really spend, month by month
- Insurance and fuel folded into 5-year cost to own
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How we count
This page rests on 10 EPA ratings of the Porsche 928 — 3 engines across 1984–1995. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $4,920. Full method.
Frequently asked questions
What mpg does the 1995 Porsche 928 get?
15 mpg combined, 14 city and 17 highway, per EPA. Across every year since 1984 the 928 has averaged 15.4 mpg.
Is the 1995 928 more efficient than the 1994?
About the same: 15 against 15 mpg combined.
Which 928 year has the best gas mileage?
The 1986, at 17 mpg combined (15 city, 21 highway).
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