Infiniti · gas
Infiniti QX80 fuel economy & road trip cost
The Infiniti QX80 (2015–2025) is rated at 16 combined MPG with a 26 gallon tank, giving roughly 333 miles between stops once you keep a sensible reserve.
Combined MPG
16
Tank
26 gal
Usable range
333 mi
Cost per mile
$0.216
Gas cost per 100 miles in a Infiniti QX80
| Pump price ($/gal) | 100 miles | 300 miles | Full tank |
|---|---|---|---|
| $3.00 | $18.75 | $56.25 | $78.00 |
| $3.50 | $21.88 | $65.63 | $91.00 |
| $4.00 | $25.00 | $75.00 | $104.00 |
| $4.50 | $28.13 | $84.38 | $117.00 |
| $5.00 | $31.25 | $93.75 | $130.00 |
Highway-heavy trips usually beat the combined rating; city traffic and roof loads reduce it.
Popular trips in a Infiniti QX80
- Las Vegas to Phoenix · ~$65
- Las Vegas to Los Angeles · ~$58
- Los Angeles to San Francisco · ~$88
- Los Angeles to San Diego · ~$28
- Los Angeles to Las Vegas · ~$58
- San Francisco to Los Angeles · ~$88
- New York to Boston · ~$48
- New York to Washington · ~$52
- New York to Philadelphia · ~$20
- Chicago to Indianapolis · ~$42
- Chicago to Detroit · ~$60
- Chicago to St. Louis · ~$67
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.