2023 Mazda CX-9 — Full Specifications
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Running gear matters most — before anything else, UK: check tyre prices at TirendoUS: check wheel & tyre prices at WheelHero for this car's fitment.
The 2023 Mazda CX-9 is an SUV powered by a 2.5L 4-cyl turbo regular gasoline engine. It returns around 28 mpg (UK) / 23 mpg (US EPA) combined. Owners often keep a Mazda CX-9 workshop manual to hand for servicing and repairs.
Compared with the 2022 Mazda CX-9: Fuel economy is essentially unchanged at around 28 mpg (UK) combined. The engine line-up listed by EPA is unchanged. It carries the same 5★ overall NHTSA rating.
Full Specifications
| Engine | 2.5L 4-cyl turbo |
|---|---|
| Transmission | Automatic (S6) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | 4-Wheel Drive |
| Body Style | SUV |
| Height | 1747 mm |
| Fuel Economy (UK) | 28 combined / 24 urban / 31 extra-urban mpg |
| Fuel Economy (US EPA) | 23 combined / 20 city / 26 highway mpg |
| CO₂ Emissions | 244 g/km |
| EPA Greenhouse Gas Score | 5 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,900 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 1 configuration for the 2023 Mazda CX-9, all with the 2.5L 4-cyl turbo engine. 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 |
|---|---|---|---|---|---|---|
| 2.5L 4-cyl turbo | Automatic (S6) | 4-Wheel Drive | 28 | 23 (20/26) | 244 | $2,900 |
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 2023 Mazda CX-9
Running Costs: 2023 Mazda CX-9
Covering around 8,000 miles a year in a 2023 Mazda CX-9 at 28 mpg combined, expect roughly 1,299 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,900 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.
2023 Mazda CX-9 Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists no safety recall campaigns for the 2023 Mazda CX-9 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
Owners have filed 13 complaints with NHTSA about the 2023 Mazda CX-9. The most-reported areas are Unspecified (4), Chest clip (2), Forward collision avoidance (2). Complaints include 3 reported crashes, 1 reported injury. That is well below the median of 58 complaints across the 14 Mazda CX-9 model years in our data.
Used-buyer checklist for the 2023 Mazda CX-9
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Driver-assist sensors (2 owner complaints) — Check that driver-assist warning lights are off and sensors are clean and undamaged.
- Brakes (2 owner complaints) — Brake firmly from speed and look for pulling, vibration or a soft pedal; ask for brake service history.
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 Mazda CX-9 compare to similar SUVs? SUVs in our database average around 27 mpg (UK) combined — this model sits close to that average, within 1 mpg. Its 244 g/km CO₂ figure is 9 g/km lower than the 253 g/km average for SUVs on this site. This comparison is based on 1824 SUVs in our dataset.
Mazda models in our database average about 34 mpg (UK) combined on their most efficient configuration; the 2023 Mazda CX-9's 28 mpg is 6 mpg below that make average. Its 244 g/km CO₂ figure is 46 g/km higher than the 198 g/km Mazda average.
Of the 14 Mazda CX-9 model years we cover, the 2023 ranks 7th for combined fuel economy on its best configuration (28 mpg UK combined, against a high of 29 mpg). See every Mazda CX-9 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 2023 Mazda CX-9
Frequently Asked Questions
What engine does the 2023 Mazda CX-9 have?
It's fitted with a 2.5L 4-cyl turbo regular gasoline engine, paired with a automatic (s6) transmission.
What is the fuel economy of the 2023 Mazda CX-9?
The most efficient configuration returns around 28 mpg (UK) combined, or 23 mpg on the US EPA cycle.
How much does the 2023 Mazda CX-9 cost to fuel per year?
The US EPA estimates about $2,900 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 2023 Mazda CX-9 have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 4 stars for frontal crash protection.
Does the 2023 Mazda CX-9 have any recalls?
NHTSA lists no safety recall campaigns for the 2023 Mazda CX-9 as of 6 October 2026. Recalls can be issued years after a model is sold, so it is still worth checking your own VIN.
What are the most common problems reported for the 2023 Mazda CX-9?
Among the 13 owner complaints filed with NHTSA, the most-reported areas are Unspecified (4 complaints), Chest clip (2 complaints), Forward collision avoidance (2 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
Is the Mazda CX-9's fuel economy good for an SUV?
Yes — it returns around 28 mpg (UK) combined, against a same-body-style average of roughly 27 mpg among the SUVs we track.