Mazda averages 25.4 mpg combined across 27 models (1984–2026). The best on record does 92 mpg, the thirstiest 16 — a yearly fuel gap of about $1,983.
What that actually costs
What a Mazda costs to feed, at 12,000 miles a year and $3.20 a gallon.
| Measure | Value |
|---|---|
| Average combined | 25.4 mpg |
| Fuel per year | $1,512 |
| Most frugal on record | 92 mpg — $417 a year |
| Thirstiest on record | 16 mpg — $2,400 a year |
Mazda models by fuel economy
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 |
|---|---|---|---|
| Mazda MX-30 | 92 / 30 | $696 | |
| Mazda Mazda2 | 36 / 31 | $1,146 | |
| Mazda Mazda3 | 36 / 27 | $1,239 | |
| Mazda CX-50 | 38 / 26 | $1,251 | |
| Mazda CX-3 | 31 / 26 | $1,267 | |
| Mazda Mazda6 | 36 / 20 | $1,276 | |
| Mazda CX-5 | 38 / 26 | $1,311 | |
| Mazda CX-30 | 29 / 26 | $1,371 | |
| Mazda GLC | 30 / 24 | $1,371 | |
| Mazda 323 | 28 / 27 | $1,391 | |
| Mazda Protege | 30 / 23 | $1,417 | |
| Mazda B-Series | 33 / 20 | $1,500 | |
| Mazda CX-70 | 26 / 25 | $1,506 | |
| Mazda MX-5 | 30 / 22 | $1,512 | |
| Mazda CX-90 | 26 / 25 | $1,518 | |
| Mazda MX-3 | 29 / 22 | $1,524 | |
| Mazda 626 | 33 / 20 | $1,600 | |
| Mazda Tribute | 32 / 18 | $1,641 | |
| Mazda MX-6 | 26 / 20 | $1,670 | |
| Mazda CX-9 | 26 / 18 | $1,770 | |
| Mazda CX-7 | 23 / 19 | $1,829 | |
| Mazda Millenia | 21 / 20 | $1,910 | |
| Mazda 929 | 26 / 18 | $1,959 | |
| Mazda RX-8 | 19 / 18 | $2,043 | |
| Mazda RX-7 | 26 / 17 | $2,065 | |
| Mazda MPV | 26 / 17 | $2,087 | |
| Mazda Navajo | 18 / 16 | $2,220 |
MPG is a number. Dollars per year is the answer.
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How we count
Fuel-economy figures come from EPA fueleconomy.gov — the same laboratory numbers printed on the window sticker. We don't adjust them; real-world consumption depends on how and where you drive.
What we add is money. Yearly cost assumes 12,000 miles at $3.20 a gallon — change either and the ranking stays, only the size of the bill moves. Cost per mile is the same figure divided out, useful when comparing a commute against a weekend car.
Frequently asked questions
What is the average Mazda mpg?
25.4 mpg combined across 27 models rated between 1984 and 2026. That averages everything the brand has offered, so a long history of trucks pulls it down.
Which Mazda model is the most economical?
See the table above — models are sorted from the most frugal down, with what each costs in fuel per year.
How much does a Mazda cost to run?
About $1,512 a year in fuel on average, at 12,000 miles and $3.20 a gallon.
Why does the average look low for a modern brand?
Because it covers every model year on record, back to the 1980s. Cars built before the mid-2000s were markedly thirstier — that era is included.