Against 240 other 4-cyl cars rated 1997–1999, the Oasis trails their 24.7 mpg average by 3.7 mpg, about $274 a year. Averaged over the years each was sold, the most economical engine since 1996, the 2.3L 4-cyl (1998–1999), does 21 mpg and the thirstiest, the 2.2L 4-cyl (1996–1997), 19.5: $140 a year apart.
Every Isuzu Oasis engine, compared
Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 2.3L 4-cyl | 19 / 24 | 1998–1999 | $1,829 | |
| 2.2L 4-cyl | 18 / 23 | 1996–1997 | $1,969 |
What that actually costs
| Measure | Value |
|---|---|
| Cost per mile (1999) | $0.152 |
| Fuel per year | $1,829 |
| Fuel over five years | $9,145 |
| Against other 4-cyl cars, 1997–1999 | +$274 a year |
| EPA's own estimate | $3,075 a year |
City or highway — who is this car for
The 1999 Isuzu Oasis gives up 5 mpg in town: 24 on the highway against 19 in the city, $421 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (1999) | 19 mpg | $2,021 a year if you only drive in town |
| Highway | 24 mpg | $1,600 a year if you mostly commute |
| Gap | +5 mpg (26%) | Typical for its type |
How the Oasis changed over the years
The Oasis peaked in 1999 at 21 mpg (19 city, 24 highway) and was at its thirstiest in 1996 at 19 — 2 mpg apart, or $192 a year in fuel between buying one year and the other.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 1999 | 19 / 24 | 1 | $1,829 | |
| 1998 | 19 / 24 | 1 | $1,829 | |
| 1997 | 18 / 24 | 1 | $1,920 | |
| 1996 | 18 / 22 | 1 | $2,021 |
MPG is a number. Dollars per year is the answer.
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How we count
This page rests on 4 EPA ratings of the Isuzu Oasis — 2 engines across 1996–1999. 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 $3,075. Full method.
Frequently asked questions
What mpg does the 1999 Isuzu Oasis get?
21 mpg combined, 19 city and 24 highway, per EPA. Across every year since 1996 the Oasis has averaged 20.3 mpg.
Is the 1999 Oasis more efficient than the 1998?
About the same: 21 against 21 mpg combined.
Which Oasis year has the best gas mileage?
The 1999, at 21 mpg combined (19 city, 24 highway), which is also the latest model year we hold.
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