The Real Cost
Week of May 18, 2026 · Oklahoma City, OK
2026 Mazda CX-90 4WD
24 gal tank · 25 MPG
$105.58 to fill the tank
At $4.40/gal, this tank gets you about 600 miles.
Source: EIA · Updated May 18, 2026
By the numbers
- Fill cost
- $105.58
- 600 miles per tank
- $/gallon
- $4.40
- EIA Midwest weekly
- Monthly (12k mi/yr)
- $175.96
- 40.0 gallons
- Annual (12k mi/yr)
- $2112
- 480 gallons
The math
Why it costs what it costs.
- Fill cost = 24 gal × $4.40/gal = $105.58
- Miles per tank = 24 × 25 = 600
- Annual (12,000 mi) = 12,000 ÷ 25 × $4.40 = $2112
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