Infiniti · gas
Infiniti QX55 fuel economy & road trip cost
The Infiniti QX55 (2022–2026) is rated at 24 combined MPG with a 20 gallon tank, giving roughly 384 miles between stops once you keep a sensible reserve.
Combined MPG
24
Tank
20 gal
Usable range
384 mi
Cost per mile
$0.144
Gas cost per 100 miles in a Infiniti QX55
| Pump price ($/gal) | 100 miles | 300 miles | Full tank |
|---|---|---|---|
| $3.00 | $12.50 | $37.50 | $60.00 |
| $3.50 | $14.58 | $43.75 | $70.00 |
| $4.00 | $16.67 | $50.00 | $80.00 |
| $4.50 | $18.75 | $56.25 | $90.00 |
| $5.00 | $20.83 | $62.50 | $100.00 |
Highway-heavy trips usually beat the combined rating; city traffic and roof loads reduce it.
Popular trips in a Infiniti QX55
- Las Vegas to Phoenix · ~$44
- Las Vegas to Los Angeles · ~$39
- Los Angeles to San Francisco · ~$59
- Los Angeles to San Diego · ~$20
- Los Angeles to Las Vegas · ~$39
- San Francisco to Los Angeles · ~$59
- New York to Boston · ~$32
- New York to Washington · ~$35
- New York to Philadelphia · ~$14
- Chicago to Indianapolis · ~$28
- Chicago to Detroit · ~$41
- Chicago to St. Louis · ~$45
Other Infiniti models
Fuel figures on this page are modelled estimates built from published EPA combined MPG ratings and curated regional pump-price baselines. They are not live station quotes — always confirm the price at the pump before you travel.