Infiniti M56 MPG by Year & Engine (EPA)
EPA fuel-economy ratings for every rated Infiniti M56 model year from 2011 to 2013 — each engine and transmission with its official city, highway and combined figures. Over these years the M56 has been offered with 5.6L 8-cyl engines; every rated year lands at 19 MPG combined. Every rated gas version calls for premium gasoline. Data: U.S. Department of Energy & EPA, fueleconomy.gov; prices are live medians from VehiSales listings.
Infiniti M56 fuel economy by year
| Year | Combined | Engines | Median used price | For sale |
|---|---|---|---|---|
| 2013 | 18–19 MPG | 5.6L 8-cyl | — | — |
| 2012 | 18–19 MPG | 5.6L 8-cyl | — | — |
| 2011 | 18–19 MPG | 5.6L 8-cyl | — | — |
2013 Infiniti M56: engines & MPG
The 2013 M56 was EPA-rated in 2 versions (5.6L 8-cyl), with combined economy from 18 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| M56 | 5.6L 8-cyl | Automatic (S7) | Premium | 16 | 24 | 19 MPG |
| M56x | 5.6L 8-cyl | Automatic (S7) | Premium | 16 | 23 | 18 MPG |
2012 Infiniti M56: engines & MPG
The 2012 M56 was EPA-rated in 2 versions (5.6L 8-cyl), with combined economy from 18 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| M56 | 5.6L 8-cyl | Automatic (S7) | Premium | 16 | 24 | 19 MPG |
| M56x | 5.6L 8-cyl | Automatic (S7) | Premium | 16 | 23 | 18 MPG |
2011 Infiniti M56: engines & MPG
The 2011 M56 was EPA-rated in 2 versions (5.6L 8-cyl), with combined economy from 18 to 19 MPG.
| Version | Engine | Transmission | Fuel | City | Hwy | Combined |
|---|---|---|---|---|---|---|
| M56 | 5.6L 8-cyl | Automatic (S7) | Premium | 16 | 25 | 19 MPG |
| M56x | 5.6L 8-cyl | Automatic (S7) | Premium | 16 | 23 | 18 MPG |
Frequently asked questions
What MPG does an Infiniti M56 get?
Every rated M56 year comes in at 19 MPG combined.
What engines does the 2013 Infiniti M56 have?
The 2013 M56 was EPA-rated with 5.6L 8-cyl engines — see the 2013 table above for each version's exact city/highway figures.
Does the Infiniti M56 require premium gas?
Yes — every EPA-rated gas M56 version specifies premium gasoline.
https://vehisales.com/research/fuel-economy/infiniti/m56.
See also: Infiniti M56 hub — live listings, prices & reliability · Most fuel-efficient cars by segment · Model price trends. Media inquiries: [email protected].