Isuzu averages 19 mpg combined across 15 petrol and diesel models (1984–2009). The best on record does 35 mpg, the thirstiest 15 — a yearly fuel gap of about $1,463.
What that actually costs
What a Isuzu costs to feed, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Average combined | 19 mpg |
| Fuel per year | $2,021 |
| Most frugal on record | 35 mpg — $1,097 a year |
| Thirstiest on record | 15 mpg — $2,560 a year |
Isuzu models by gas mileage
From the most frugal down. The yearly figure is what the fuel actually costs at 12,000 miles.
| Model | Average mpg | Best / Worst engine | Fuel per year |
|---|---|---|---|
| Isuzu I-Mark | 35 / 23 | $1,208 | |
| Isuzu Stylus | 30 / 28 | $1,324 | |
| Isuzu IMPULSE | 26 / 21 | $1,677 | |
| Isuzu i-280 | 21 / 21 | $1,829 | |
| Isuzu Hombre | 23 / 17 | $1,873 | |
| Isuzu Oasis | 21 / 19 | $1,892 | |
| Isuzu i-290 | 20 / 20 | $1,920 | |
| Isuzu i-370 | 18 / 18 | $2,133 | |
| Isuzu Amigo | 20 / 16 | $2,157 | |
| Isuzu Rodeo | 20 / 15 | $2,233 | |
| Isuzu i-350 | 17 / 17 | $2,259 | |
| Isuzu Axiom | 18 / 16 | $2,299 | |
| Isuzu Trooper | 25 / 15 | $2,385 | |
| Isuzu Ascender | 16 / 15 | $2,430 | |
| Isuzu VehiCross | 15 / 15 | $2,560 |
MPG is a number. Dollars per year is the answer.
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How we count
Isuzu rests on 121 EPA ratings covering 15 models from 1984 to 2009. The laboratory numbers are EPA's and go in unchanged; the money is ours, at 12,000 miles a year and $3.20 a gallon. Full method.
Frequently asked questions
What is the average Isuzu gas mileage?
19 mpg combined across 15 models and 121 EPA ratings, from 1984 to 2009 — 25 model years in one figure, which is why it sits below what a new Isuzu does today.
Which Isuzu model is the most economical?
The Isuzu I-Mark at 31.8 mpg, about $1,208 a year in fuel, against the VehiCross at 15.0 mpg and $2,560 — a gap of $1,352 a year between the two ends of the same badge.
How much does a Isuzu cost to run?
About $2,021 a year in fuel, at 12,000 miles and $3.20 a gallon. Over five years that is $10,105, before a single service.
Why does the Isuzu average look low?
Because it spans 25 model years, back to 1984. Cars built before the mid-2000s were markedly thirstier, and Isuzu has 121 ratings from that whole stretch — the recent ones are pulled down by the old.
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