Mazda B4000 4WD
15.5 MPG The 2009 Mazda B4000 4WD is EPA-rated at 15.5 MPG combined (14.5 city / 18.5 highway). Over 15,000 miles a year that is about 968 gallons, $3097 a year in fuel, or $0.206 per mile at $3.20/gal.
Across its full 2000–2009 run it averages 15.4 MPG, essentially flat across 10 model years.
Running cost at different fuel prices and mileages
The figure everyone actually wants, and the one the EPA does not publish — because it depends on a fuel price no agency will commit to.
| Fuel price | Per mile | 10,000 mi/yr | 15,000 mi/yr | 20,000 mi/yr |
|---|---|---|---|---|
| $2.50/gal | $0.161 | $1613 | $2419 | $3226 |
| $3.00/gal | $0.194 | $1935 | $2903 | $3871 |
| $3.20/gal | $0.206 | $2065 | $3097 | $4129 |
| $3.50/gal | $0.226 | $2258 | $3387 | $4516 |
| $4.00/gal | $0.258 | $2581 | $3871 | $5161 |
| $4.50/gal | $0.290 | $2903 | $4355 | $5806 |
| $5.00/gal | $0.323 | $3226 | $4839 | $6452 |
Every model year
| Year | Combined | City | Highway | EPA fuel cost/yr | CO₂ g/mi | Trims |
|---|---|---|---|---|---|---|
| 2009 | 15.5 MPG | 14.5 | 18.5 | $4025 | 574 | 2 |
| 2008 | 15.5 MPG | 14.5 | 18 | $4025 | 574 | 2 |
| 2007 | 15.5 MPG | 14.5 | 18 | $4025 | 574 | 2 |
| 2006 | 15.5 MPG | 14 | 18 | $4025 | 574 | 2 |
| 2005 | 15.5 MPG | 14 | 17.5 | $4025 | 574 | 2 |
| 2004 | 15 MPG | 14 | 17.5 | $4150 | 592 | 2 |
| 2003 | 15 MPG | 14 | 17 | $4150 | 592 | 2 |
| 2002 | 15 MPG | 13.5 | 17.5 | $4150 | 592 | 2 |
| 2001 | 15.5 MPG | 14 | 17.5 | $4025 | 574 | 2 |
| 2000 | 15.5 MPG | 14.5 | 18 | $4025 | 574 | 2 |
Where a model year offered several engines or drivetrains, the figure is the average across all EPA-tested trims that year — the trim count is shown so you can see how much averaging is involved.
How it compares in its class
Among the 33 standard pickup trucks 4wd models tracked here, the Mazda B4000 4WD ranks 23 on current figures, against a class average of 17.2 MPG.
Closest more-efficient alternatives in the same class: Ford F150 RAPTOR 4WD (16), Nissan Titan 4WD PRO4X (16), Nissan Frontier V6 4WD (16.5), Honda Ridgeline Truck 4WD (17), Nissan Titan 4WD (17).
Tailpipe CO₂ is rated at 574 grams per mile, which works out to roughly 8.6 tonnes a year at 15,000 miles.
Questions
What MPG does the Mazda B4000 4WD get?
The 2009 Mazda B4000 4WD is rated at 15.5 MPG combined by the EPA — 14.5 city and 18.5 highway. Across all 10 model years in the database it averages 15.4 MPG, ranging from 15 to 16 depending on year and trim.
How much does a Mazda B4000 4WD cost in fuel per year?
At 15.5 MPG and 15,000 miles a year, it burns about 968 gallons — roughly $3097 a year with fuel at $3.20 a gallon, or $0.206 per mile. The EPA's own published annual figure for the 2009 model is $4025.
Has the Mazda B4000 4WD become more efficient over time?
Barely. It sits at 15.5 MPG today against 15.5 in 2000 — essentially flat across 10 model years, with efficiency gains offset by weight and power creep.
Is the Mazda B4000 4WD efficient for its class?
It ranks 23 of 33 in the Standard Pickup Trucks 4WD class on current figures, against a class average of 17.2 MPG. That is 1.7 worse than typical for the class.
EPA test figures from fueleconomy.gov. Cost per mile and annual fuel spend are computed at a reference price of $3.20 per gallon — use your own price. Estimates based on official test figures and average fuel prices. Real-world consumption varies with driving style, load, terrain and maintenance.