Against 293 other V8 cars rated 2011–2013, the QX56 sits right on their 16.5 mpg average.
Every Infiniti QX56 engine, compared
The Infiniti QX56 was rated in a single specification, so its gas mileage does not vary by version — only by model year. Yearly cost assumes 12,000 miles at $3.20 a gallon.
| Engine | Combined | City / Highway | Years | Fuel per year |
|---|---|---|---|---|
| 5.6L 8-cyl | 12.6 / 18.5 | 2004–2013 | $2,630 |
What that actually costs
Against its rivals in the same model years, the Subaru Outback gets 23.7 mpg, the Subaru Forester 24.3 mpg and the Jeep Liberty 18 mpg, next to 16 mpg for the 2013 QX56. The QX56 costs the most of them to run: $820 a year more than the Subaru Forester.
| Measure | Value |
|---|---|
| Cost per mile (2013) | $0.200 |
| Fuel per year | $2,400 |
| Fuel over five years | $12,000 |
| Against other V8 cars, 2011–2013 | +$73 a year |
| EPA's own estimate | $4,975 a year |
City or highway — who is this car for
The 2013 Infiniti QX56 gives up 6 mpg in town: 20 on the highway against 14 in the city, $823 a year if every mile were city driving.
| Measure | Value | Reading |
|---|---|---|
| City (2013) | 14 mpg | $2,743 a year if you only drive in town |
| Highway | 20 mpg | $1,920 a year if you mostly commute |
| Gap | +6 mpg (43%) | Wide — this car dislikes traffic |
How the QX56 changed over the years
The QX56 peaked in 2013 at 16 mpg (14 city, 20 highway) and was at its thirstiest in 2010 at 14 — 2 mpg apart, or $343 a year in fuel between buying one year and the other.
| Model year | Combined | City / Highway | Engines offered | Fuel per year |
|---|---|---|---|---|
| 2013 | 14 / 20 | 1 | $2,400 | |
| 2012 | 14 / 20 | 1 | $2,400 | |
| 2011 | 14 / 20 | 1 | $2,400 | |
| 2010 | 12 / 18 | 1 | $2,743 | |
| 2009 | 12 / 18 | 1 | $2,743 | |
| 2008 | 12 / 18 | 1 | $2,743 | |
| 2007 | 12 / 17 | 1 | $2,743 | |
| 2006 | 12 / 18 | 1 | $2,743 | |
| 2005 | 12 / 18 | 1 | $2,743 | |
| 2004 | 12 / 18 | 1 | $2,743 |
MPG is a number. Dollars per year is the answer.
- Fuel profile built from your actual mileage and local prices
- Fuel tracker: what you really spend, month by month
- Insurance and fuel folded into 5-year cost to own
- Compare any two cars on total cost, not sticker price
- No ads, no tracking — and much more
How we count
This page rests on 10 EPA ratings of the Infiniti QX56 — 1 engine across 2004–2013. The mileage is EPA's laboratory figure, unchanged; the yearly bill is ours, at 12,000 miles and $3.20 a gallon, against EPA's own estimate of $4,975. Full method.
Frequently asked questions
What mpg does the 2013 Infiniti QX56 get?
16 mpg combined, 14 city and 20 highway, per EPA. Across every year since 2004 the QX56 has averaged 14.6 mpg.
Is the 2013 QX56 more efficient than the 2012?
About the same: 16 against 16 mpg combined.
Which QX56 year has the best gas mileage?
The 2013, at 16 mpg combined (14 city, 20 highway), which is also the latest model year we hold.
Does the QX56 get better gas mileage than the Subaru Outback?
No: 16 mpg for the 2013 QX56 against 23.7 for the 2014 Subaru Outback, about $780 a year more to run.
Mark ForCar as a preferred source and our data shows up first in your Google results. One click, no account.