2021 Nissan Armada — Full Specifications
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The 2021 Nissan Armada 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 Nissan Armada workshop manual to hand for servicing and repairs.
Compared with the 2020 Nissan Armada: Fuel economy is essentially unchanged at around 19 mpg (UK) combined. The engine line-up listed by EPA is unchanged.
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 / 23 extra-urban mpg |
| Fuel Economy (US EPA) | 16 combined / 14 city / 19 highway mpg |
| CO₂ Emissions | 347 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 2021 Nissan Armada, 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 (13/18) | 370 | $5,500 |
| 5.6L 8-cyl | Automatic (S7) | Rear-Wheel Drive | 19 | 16 (14/19) | 347 | $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 2021 Nissan Armada
Running Costs: 2021 Nissan Armada
Covering around 8,000 miles a year in a 2021 Nissan Armada 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.
2021 Nissan Armada Safety Ratings (NHTSA)
No NHTSA crash-test rating is on record for this model year. The NHTSA rates only a subset of vehicles each year; you can browse every rated vehicle on our NHTSA Safety Ratings hub.
Recalls & Owner Complaints (NHTSA)
NHTSA lists 2 safety recall campaigns that include the 2021 Nissan Armada (as of 6 October 2026). Most affected areas: Equipment (1), Fuel system (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.
- Fuel system — campaign 21V373000, reported 20 May 2021. Risk: Fuel pump failure can cause an engine stall, increasing the risk of a crash.
Owners have filed 13 complaints with NHTSA about the 2021 Nissan Armada. The most-reported areas are Fuel/propulsion system (4), Electrical system (3), Forward collision avoidance (3). Complaints include 1 reported crash, 1 reported injury. That is close to the median of 17 complaints across the 16 Nissan Armada model years in our data.
Used-buyer checklist for the 2021 Nissan Armada
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Fuel system (1 recall campaign · 4 owner complaints) — Ask whether any fuel-pump or fuel-system recalls were completed, and watch for hard starting or stalling.
- Electrical system (3 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Driver-assist sensors (3 owner complaints) — Check that driver-assist warning lights are off and sensors are clean and undamaged.
- Engine (3 owner complaints) — Listen for unusual noise on a cold start, check for warning lights and ask for the service records.
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 Nissan Armada 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 347 g/km CO₂ figure is 94 g/km higher than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Nissan models in our database average about 29 mpg (UK) combined on their most efficient configuration; the 2021 Nissan Armada's 19 mpg is 10 mpg below that make average. Its 347 g/km CO₂ figure is 107 g/km higher than the 240 g/km Nissan average.
Of the 16 Nissan Armada model years we cover, the 2021 ranks 3rd for combined fuel economy on its best configuration (19 mpg UK combined, against a high of 22 mpg). See every Nissan Armada 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 2021 Nissan Armada
Frequently Asked Questions
What engine does the 2021 Nissan Armada 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 2021 Nissan Armada?
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 2021 Nissan Armada 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 2021 Nissan Armada have any recalls?
NHTSA lists 2 safety recall campaigns that include the 2021 Nissan Armada (as of 6 October 2026). Most affected areas: Equipment (1), Fuel system (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 2021 Nissan Armada?
Among the 13 owner complaints filed with NHTSA, the most-reported areas are Fuel/propulsion system (4 complaints), Electrical system (3 complaints), Forward collision avoidance (3 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Nissan Armada'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.