- Newest year: 2013
- Gas
- Standard SUVs
2011-2013 Infiniti QX56 MPG & Fuel Cost
3 model years · 16 MPG combined
15,000 mi/yr · premium gasoline $5.36/gal (U.S. average, Sep 2026)
Cheaper to fuel than 2 of 10 standard SUV configurations, MY2013. Ranked against all rated configurations, not sales-weighted.
2011-2013 Infiniti QX56 at a glance
The 2011-2013 Infiniti QX56 covers 3 model years in the EPA database (6 configurations in all), rated 16 MPG combined. The newest model year, 2013, costs about $5,040 a year to fuel for its most efficient version, the QX56 5.6L 8-cyl RWD (16 MPG), at premium gasoline $5.36/gal (U.S. average, Sep 2026). EPA changed the ratings in 2012 and 2013.
2011-2013 Infiniti QX56 by model year
What the 2013 QX56 5.6L 8-cyl RWD costs to drive
Per month
$420
$5,040 a year ÷ 12
Per 25 miles
$8.40
Per 100 miles
$33.60
Five years
$25,200
5 × the yearly cost, prices held at today's level
vs the standard SUV median
$860more a year
Class median $4,180 a year, MY2013
Based on 15,000 miles a year and premium gasoline $5.36/gal (U.S. average, Sep 2026).
2013 Infiniti QX56 MPG
Versus 2012: The most efficient configuration stays at 16 MPG. Its annual cost stays at $5,040.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| QX56 5.6L 8-cyl RWD (Most efficient) | 5.6L 8-cyl | RWD | 14 | 20 | 16 | $5,040 |
| QX56 5.6L 8-cyl 4WD | 5.6L 8-cyl | 4WD | 14 | 20 | 16 | $5,090 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2012 Infiniti QX56 MPG
16 MPG · $5,040–$5,090/yr
Versus 2011: The most efficient configuration stays at 16 MPG. Its annual cost goes from $5,030 to $5,040, $10 more.
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| QX56 5.6L 8-cyl RWD (Most efficient) | 5.6L 8-cyl | RWD | 14 | 20 | 16 | $5,040 |
| QX56 5.6L 8-cyl 4WD | 5.6L 8-cyl | 4WD | 14 | 20 | 16 | $5,090 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
2011 Infiniti QX56 MPG
16 MPG · $5,030–$5,090/yr
Gas configurations (2)
| Trim | Engine | Drive | City | Hwy | Comb. | $/yr |
|---|---|---|---|---|---|---|
| QX56 5.6L 8-cyl RWD (Most efficient) | 5.6L 8-cyl | RWD | 14 | 20 | 16 | $5,030 |
| QX56 5.6L 8-cyl 4WD | 5.6L 8-cyl | 4WD | 14 | 20 | 16 | $5,090 |
2 configurations require or recommend higher-octane gasoline and are costed at premium gasoline $5.36/gal (U.S. average, Sep 2026).
Fuel cost by state
Yearly cost of the QX56 5.6L 8-cyl RWD: $6,010 in California and $4,370 in Texas, a $1,640 difference.
- California $6,010
- Washington $5,660
- New York $4,980
- Florida $4,610
- Texas $4,370
Similar cars
Closest combined MPG among MY2013 standard SUV models.
Generations
- 2004-2010 (JA60)
- 2011-2013 (Z62)
Frequently asked questions
What gas mileage does the 2011-2013 Infiniti QX56 get?
EPA rates the 2011-2013 Infiniti QX56 at 16 MPG combined across 6 configurations and 3 model years. The most efficient version, the 2013 QX56 5.6L 8-cyl RWD, is rated 16 MPG (14 city, 20 highway).
Which years had the best MPG in the 2011-2013 Infiniti QX56?
Every model year of the 2011-2013 Infiniti QX56 tops out at 16 MPG combined, so no year is better than another.
Did EPA ratings change during the 2011-2013 Infiniti QX56?
Yes. Ratings changed in 2012 and 2013.
How does the 2011-2013 Infiniti QX56 compare with the previous generation?
The previous generation (2004-2010 Infiniti QX56) is rated 14 MPG combined and costs $4,670–$5,740 a year to fuel; the 2011-2013 model is rated 16 MPG and costs $5,030–$5,090 a year.
How much does it cost to fuel a 2013 Infiniti QX56 per year?
Driving 15,000 miles a year at premium gasoline $5.36/gal (U.S. average, Sep 2026), the QX56 5.6L 8-cyl RWD costs about $5,040 a year. Across all 2 configurations the cost runs $5,040–$5,090 a year. That is a $50 difference between the cheapest and the costliest configuration.
How much does it cost to drive a 2013 Infiniti QX56 100 miles?
About $33.60 per 100 miles for the QX56 5.6L 8-cyl RWD at premium gasoline $5.36/gal (U.S. average, Sep 2026), and between $33.60 and $33.93 across all configurations. That is the annual cost over 15,000 miles divided by 150.
Is the 2013 Infiniti QX56 more efficient in the city or on the highway?
The QX56 5.6L 8-cyl RWD is rated 14 city and 20 highway MPG, so it is more efficient on the highway, by 6 MPG.
How does the 2013 Infiniti QX56 compare with other standard SUV configurations?
The QX56 5.6L 8-cyl RWD costs about $5,040 a year to fuel, $860 more than the class median of $4,180, and less than 2 of 10 standard SUV configurations. The comparison covers all 111 rated standard SUV configurations for MY2013, not weighted by sales.
Is the 2013 Infiniti QX56 different from the 2012 model?
The most efficient configuration stays at 16 MPG. Its annual cost stays at $5,040. EPA lists 2 configurations for 2013 against 2 configurations for 2012. See the 2012 Infiniti QX56 for that year.