The Real Cost
Week of May 18, 2026 · Tucson, AZ
2026 Toyota Sienna 2WD
20 gal tank · 36 MPG
$112.10 to fill the tank
At $5.61/gal, this tank gets you about 720 miles.
Source: EIA · Updated May 18, 2026
By the numbers
- Fill cost
- $112.10
- 720 miles per tank
- $/gallon
- $5.61
- EIA West Coast weekly
- Monthly (12k mi/yr)
- $155.69
- 27.8 gallons
- Annual (12k mi/yr)
- $1868
- 333 gallons
The math
Why it costs what it costs.
- Fill cost = 20 gal × $5.61/gal = $112.10
- Miles per tank = 20 × 36 = 720
- Annual (12,000 mi) = 12,000 ÷ 36 × $5.61 = $1868
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