SUV · Premium gas
Infiniti QX80 Fuel Cost
Full-size luxury SUV with a powerful V8 and limousine-grade rear seats. Below are estimated fuel costs based on 16 combined MPG and average US gas prices.
Best for towing or carrying gear; fuel costs will be higher than a sedan.
- High fuel use
- Best for short trips
- Heavy fuel use
- Updated for 2026
- EPA-style MPG
- US avg fuel prices
- US units
- Transparent assumptions
14 MPG
20 MPG
16 MPG
26 gal
~416 mi
MPG breakdown
Estimated fuel cost at 12,000 miles/year
Based on 16 MPG and $4.10/gal.
Annual cost
$3075
Monthly cost
$256
Cost per mile
$0.256
Gallons / year
750
Estimate your own cost
Pre-filled with the Infiniti QX80's combined MPG.
Pre-filled with estimated combined MPG for the Infiniti QX80. Adjust for your real-world driving.
Estimated Annual Cost
$0.00
Per Month
$0.00
Per Mile
$0.000
~750 gallons per year
Cost by annual mileage
How much you'll spend per year at common US mileage levels (estimates).
| Miles per year | Gallons / year | Annual cost | Monthly cost |
|---|---|---|---|
| 8,000 | 500 | $2050 | $171 |
| 12,000 | 750 | $3075 | $256 |
| 15,000 | 938 | $3844 | $320 |
Estimates only. Actual costs depend on driving style, terrain, weather, and local fuel or electricity prices.
How we estimate Infiniti QX80 costs
- MPG / MPGe
- EPA-style combined city + highway figures for the base trim and recent model year.
- Fuel price
- Average US retail regular gas, premium where required, or per-kWh electricity.
- Annual mileage
- Default scenarios at 8,000 / 12,000 / 15,000 miles per year.
- Trim & year variance
- AWD, larger wheels, towing packages and older years can lower efficiency 5–15%.
Sources & assumptions
- EPA fuel economy data — City / highway / combined MPG and MPGe baselines.
- U.S. Department of Energy (fueleconomy.gov) — Vehicle efficiency and EV range references.
- AAA gas price trends — Recent national and regional retail fuel averages.
- EIA electricity rates — Average residential per-kWh prices used for EV charging.
We summarize publicly available data — no scraping, no external API calls. Figures are calibrated periodically; use the calculators above for your exact inputs.
Frequently asked questions
What is the estimated annual fuel cost for the Infiniti QX80?
Driving 12,000 miles per year at 16 MPG and $4.10/gal, expect about $3075 per year. Heavier city driving or longer commutes will increase that.
What MPG does the Infiniti QX80 get?
Estimated EPA-style ratings are roughly 14 city / 20 highway / 16 combined MPG. Real-world numbers depend on terrain, climate and driving style.
What is the tank size of the Infiniti QX80?
The Infiniti QX80 typically has a 26-gallon tank. At 16 combined MPG, that's roughly 416 miles of driving range per fill-up.
How does Infiniti QX80 fuel cost compare to other vehicles?
At 12,000 miles per year, this vehicle costs about $3075. Compare it to other suvs on our index page or use the cost-per-mile calculator to compare two specific vehicles side-by-side.
Cheaper-to-drive alternatives
Same vehicle class as the Infiniti QX80, but lower fuel or charging cost per mile. Annual cost at 12,000 mi.
Compare similar SUVs
The closest competitors to the Infiniti QX80 by MPG and category.
Best road trips for the Infiniti QX80
Long-haul drives where the Infiniti QX80's comfort and cargo space pay off.