The Real Cost
Week of September 21, 2026 · San Antonio, TX
2026 Chevrolet Silverado
24 gal tank · 17 MPG
$80–$94
typical fill → full tank · 24 galAt $3.93/gal, this tank gets you about 408 miles.
Source: EIA · Updated September 21, 2026
12-week state trend
+$0.64 over 12 wk
Local context
San Antonio runs at $3.93/gal this week — about 12.3% below the U.S. average of $4.48. At this price the 2026 Chevrolet Silverado's 17 MPG returns roughly 4.3 miles per dollar (58.8 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a San Antonio driver spends about $2,773 on gas in this car (use the calculator for your own mileage). For the same car, $4,237 in California (priciest reporting state at $6.00/gal) vs. $2,773 in Texas ($3.93/gal). $1,464 swing.
By the numbers
Fill cost
$80–$94
typical → full · 408 mi/tank
Per gallon
$3.93
EIA TX state weekly
Monthly · 12k mi/yr
$231.12
58.8 gal
Annual · 12k mi/yr
$2773
706 gal
The math
Why it costs what it costs.
- Fill cost = 24 gal × $3.93/gal = $94.30
- Miles per tank = 24 × 17 = 408
- Annual @ 12,000 mi (typical) = 12,000 ÷ 17 × $3.93 = $2773
Want to customize miles per year or override the pump price you saw? Use the full calculator.