The Real Cost
Week of September 21, 2026 · Philadelphia, PA
2027 Buick Enclave
22 gal tank · 21 MPG
$83–$98
typical fill → full tank · 22 galAt $4.44/gal, this tank gets you about 462 miles.
Source: EIA · Updated September 21, 2026
12-week state trend · padd proxy
+$0.56 over 12 wk
Local context
Philadelphia runs at $4.44/gal this week — about 0.9% below the U.S. average of $4.48. At this price the 2027 Buick Enclave's 21 MPG returns roughly 4.7 miles per dollar (47.6 gallons per 1,000 miles).
At a typical 12,000 miles a year — the U.S. driving average — a Philadelphia driver spends about $2,536 on gas in this car (use the calculator for your own mileage). For the same car, $3,430 in California (priciest reporting state at $6.00/gal) vs. $2,245 in Texas ($3.93/gal). $1,185 swing.
By the numbers
Fill cost
$83–$98
typical → full · 462 mi/tank
Per gallon
$4.44
EIA Central Atlantic weekly
Monthly · 12k mi/yr
$211.33
47.6 gal
Annual · 12k mi/yr
$2536
571 gal
The math
Why it costs what it costs.
- Fill cost = 22 gal × $4.44/gal = $97.64
- Miles per tank = 22 × 21 = 462
- Annual @ 12,000 mi (typical) = 12,000 ÷ 21 × $4.44 = $2536
Want to customize miles per year or override the pump price you saw? Use the full calculator.