Against 264 other V6 cars rated 1990–1992, the M30 sits right on their 18.2 mpg average.
Every Infiniti M30 engine, compared
The Infiniti M30 was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 3L 6-cyl | 17 / 23 | 1990–1992 | $2,021 |
What that actually costs
| Measure | Value |
|---|---|
| Cost per mile (1992) | $0.168 |
| Fuel per year | $2,021 |
| Fuel over five years | $10,105 |
| Against other V6 cars, 1990–1992 | −$89 a year |
| EPA's own estimate | $4,050 a year |
City or highway — who is this car for
The 1992 Infiniti M30 gives up 6 mpg in town: 23 on the highway against 17 in the city, $589 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (1992) | 17 mpg | $2,259 a year if you only drive in town |
| Highway | 23 mpg | $1,670 a year if you mostly commute |
| Gap | +6 mpg (35%) | Wide — this car dislikes traffic |
How the M30 changed over the years
Combined figure across the 3 model years the M30 was rated in, all of them at 19 mpg.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 1992 | 17 / 23 | 1 | $2,021 | |
| 1991 | 17 / 23 | 1 | $2,021 | |
| 1990 | 17 / 23 | 1 | $2,021 |
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
- Compare any two cars on total cost, not sticker price
- No ads, no tracking — and much more
How we count
This page rests on 3 EPA ratings of the Infiniti M30 — 1 engine across 1990–1992. 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 $4,050. Full method.
Frequently asked questions
What mpg does the 1992 Infiniti M30 get?
19 mpg combined, 17 city and 23 highway, per EPA. Across every year since 1990 the M30 has averaged 19 mpg.
Is the 1992 M30 more efficient than the 1991?
About the same: 19 against 19 mpg combined.
Mark ForCar as a preferred source and our data shows up first in your Google results. One click, no account.