2019 Infiniti QX80 — Full Specifications
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The 2019 Infiniti QX80 is an SUV powered by a 5.6L 8-cyl premium gasoline engine. Its most fuel-efficient configuration returns around 19 mpg (UK) / 16 mpg (US EPA) combined, with 18–19 mpg (UK) across all configurations. Owners often keep a Infiniti QX80 workshop manual to hand for servicing and repairs.
Compared with the 2018 Infiniti QX80: Fuel economy is essentially unchanged at around 19 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It holds a 4★ overall NHTSA rating (none is on record for the 2018 model).
Full Specifications
| Engine | 5.6L 8-cyl |
|---|---|
| Transmission | Automatic (S7) |
| Fuel Type | Premium Gasoline |
| Powertrain | Conventional |
| Drive | Rear-Wheel Drive |
| Body Style | SUV |
| Fuel Economy (UK) | 19 combined / 17 urban / 24 extra-urban mpg |
| Fuel Economy (US EPA) | 16 combined / 14 city / 20 highway mpg |
| CO₂ Emissions | 340 g/km |
| EPA Greenhouse Gas Score | 2 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $5,150 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2019 Infiniti QX80, all with the 5.6L 8-cyl engine. Combined fuel economy ranges from 15 to 16 mpg (US), or 18 to 19 mpg (UK), depending on engine, transmission and drive. The headline figures at the top of this page describe the most fuel-efficient configuration.
| Engine | Transmission | Drive | MPG (UK) | MPG (US) | CO₂ g/km | Fuel cost / yr |
|---|---|---|---|---|---|---|
| 5.6L 8-cyl | Automatic (S7) | 4-Wheel Drive | 18 | 15 (13/19) | 368 | $5,500 |
| 5.6L 8-cyl | Automatic (S7) | Rear-Wheel Drive | 19 | 16 (14/20) | 340 | $5,150 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
Owner Essentials for the 2019 Infiniti QX80
Running Costs: 2019 Infiniti QX80
Covering around 8,000 miles a year in a 2019 Infiniti QX80 at 19 mpg combined, expect roughly 1,914 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $5,150 a year in fuel for the most efficient configuration (15,000 miles, national average prices). Work out exact fuel costs with the fuel cost calculator on 247Calculators.
Convert between MPG and L/100km with the unit converters on 247QuickTools. Not sure what tyre size fits? 247TyreCheck explains tyre sizing.
Planning a road trip? Grab a road trip packing list. Only need this car occasionally? See our buy vs rent comparison.
2019 Infiniti QX80 Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2019 Infiniti QX80 (as of 6 October 2026). Most affected areas: Equipment (1), Back over prevention (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Equipment — campaign 26V455000, reported 15 July 2026. Risk: An overloaded vehicle can increase the risk of a crash.
- Back over prevention — campaign 19V654000, reported 12 September 2019. Risk: The lack of an image in the back-up camera display increases the risk of a crash.
Owners have filed 20 complaints with NHTSA about the 2019 Infiniti QX80. The most-reported areas are Electrical system (8), Unspecified (5), Fuel/propulsion system (2).
Used-buyer checklist for the 2019 Infiniti QX80
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (8 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Fuel system (2 owner complaints) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
Source: US NHTSA recall and consumer-complaint databases, retrieved 6 October 2026. Complaints are unverified owner reports, not confirmed defects. Check any vehicle by VIN at nhtsa.gov/recalls, and see our guide to checking a used car for recalls.
How It Compares
How does the Infiniti QX80 compare to similar SUVs? For context, SUVs in our database average around 27 mpg (UK) combined — this model's 19 mpg figure is 8 mpg below that average. Its 340 g/km CO₂ figure is 87 g/km higher than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Infiniti models in our database average about 26 mpg (UK) combined on their most efficient configuration; the 2019 Infiniti QX80's 19 mpg is 7 mpg below that make average. Its 340 g/km CO₂ figure is 77 g/km higher than the 263 g/km Infiniti average.
Of the 13 Infiniti QX80 model years we cover, the 2019 ranks 3rd for combined fuel economy on its best configuration (19 mpg UK combined, against a high of 22 mpg). See every Infiniti QX80 year side by side.
Last updated: · Data: US EPA (fueleconomy.gov) and NHTSA safety ratings 18 July 2026; NHTSA recalls and complaints 6 October 2026; Wikidata & curated EU catalogue 18 July 2026; European generation and engine data from Wikipedia 7 October 2026
Vehicle data sourced from manufacturer specifications. Always verify with your vehicle handbook or a qualified mechanic. This is a reference tool, not professional advice.
Recommended Accessories for the 2019 Infiniti QX80
Frequently Asked Questions
What engine does the 2019 Infiniti QX80 have?
It's fitted with a 5.6L 8-cyl premium gasoline engine, paired with a automatic (s7) transmission.
What is the fuel economy of the 2019 Infiniti QX80?
The most efficient configuration returns around 19 mpg (UK) combined, or 16 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 18 to 19 mpg.
How much does the 2019 Infiniti QX80 cost to fuel per year?
The US EPA estimates about $5,150 a year in fuel for the most efficient configuration, based on 15,000 miles of mixed driving and national average fuel prices. Your own cost will depend on mileage and local prices.
Does the 2019 Infiniti QX80 have a good safety rating?
It holds an overall NHTSA rating of 4 stars, with 3 stars for frontal crash protection.
Does the 2019 Infiniti QX80 have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2019 Infiniti QX80 (as of 6 October 2026). Most affected areas: Equipment (1), Back over prevention (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
What are the most common problems reported for the 2019 Infiniti QX80?
Among the 20 owner complaints filed with NHTSA, the most-reported areas are Electrical system (8 complaints), Unspecified (5 complaints), Fuel/propulsion system (2 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Infiniti QX80's fuel economy good for an SUV?
It returns around 19 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.