The Real Cost
Week of September 21, 2026 · Austin, TX
2026 Mazda CX-30
13.2 gal tank · 27 MPG
$44–$52
typical fill → full tank · 13.2 galAt $3.93/gal, this tank gets you about 356 miles.
Source: EIA · Updated September 21, 2026
12-week state trend
+$0.64 over 12 wk
Local context
Austin runs at $3.93/gal this week — about 12.3% below the U.S. average of $4.48. At this price the 2026 Mazda CX-30's 27 MPG returns roughly 6.9 miles per dollar (37.0 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Austin driver spends about $1,746 on gas in this car (use the calculator for your own mileage). For the same car, $2,668 in California (priciest reporting state at $6.00/gal) vs. $1,746 in Texas ($3.93/gal). $922 swing.
By the numbers
Fill cost
$44–$52
typical → full · 356 mi/tank
Per gallon
$3.93
EIA TX state weekly
Monthly · 12k mi/yr
$145.52
37.0 gal
Annual · 12k mi/yr
$1746
444 gal
The math
Why it costs what it costs.
- Fill cost = 13.2 gal × $3.93/gal = $51.86
- Miles per tank = 13.2 × 27 = 356
- Annual @ 12,000 mi (typical) = 12,000 ÷ 27 × $3.93 = $1746
Want to customize miles per year or override the pump price you saw? Use the full calculator.