2017 Mazda 6 — Full Specifications
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The 2017 Mazda 6 is a saloon/sedan powered by a 2.5L 4-cyl regular gasoline engine. Its most fuel-efficient configuration returns around 35 mpg (UK) / 29 mpg (US EPA) combined, with 34–35 mpg (UK) across all configurations. Owners often keep a Mazda 6 workshop manual to hand for servicing and repairs.
Compared with the 2016 Mazda 6: Fuel economy is essentially unchanged at around 35 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 |
|---|---|
| Transmission | Automatic (S6) |
| Fuel Type | Regular Gasoline |
| Powertrain | Conventional |
| Drive | Front-Wheel Drive |
| Body Style | Saloon/Sedan |
| Passenger Volume (EPA) | 100 cu ft (2,832 L) |
| Luggage Volume (EPA) | 15 cu ft (425 L) |
| Fuel Economy (UK) | 35 combined / 31 urban / 42 extra-urban mpg |
| Fuel Economy (US EPA) | 29 combined / 26 city / 35 highway mpg |
| CO₂ Emissions | 189 g/km |
| EPA Greenhouse Gas Score | 7 / 10 (10 = lowest emissions) |
| EPA Est. Annual Fuel Cost | $2,300 (15,000 mi/yr, US prices) |
Engine & Transmission Options
EPA lists 2 configurations for the 2017 Mazda 6, all with the 2.5L 4-cyl engine. Combined fuel economy ranges from 28 to 29 mpg (US), or 34 to 35 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 |
|---|---|---|---|---|---|---|
| 2.5L 4-cyl | Automatic (S6) | Front-Wheel Drive | 35 | 29 (26/35) | 189 | $2,300 |
| 2.5L 4-cyl | Manual 6-spd | Front-Wheel Drive | 34 | 28 (24/34) | 196 | $2,400 |
MPG (US) shows combined, with city/highway in brackets. Highlighted row = the configuration used for the headline figures. Source: US EPA fueleconomy.gov.
EPA measures interior passenger volume at 100 cubic feet (about 2,832 litres) and luggage volume at 15 cubic feet (about 425 litres). These are US EPA interior-volume figures; they are measured differently from the boot capacity numbers UK manufacturers quote.
Owner Essentials for the 2017 Mazda 6
Running Costs: 2017 Mazda 6
Covering around 8,000 miles a year in a 2017 Mazda 6 at 35 mpg combined, expect roughly 1,039 litres of fuel annually — multiply by your local price per litre for a cost estimate. For US owners, the EPA estimates about $2,300 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.
Only need this car occasionally? See our buy vs rent comparison.
2017 Mazda 6 Safety Ratings (NHTSA)
Recalls & Owner Complaints (NHTSA)
NHTSA lists 1 safety recall campaign that include the 2017 Mazda 6 (as of 6 October 2026). Most affected areas: Exterior lighting (1). A campaign often covers several model years or models, so check your own VIN to see whether your car is affected.
- Exterior lighting — campaign 16V753000, reported 18 October 2016. Risk: A vehicle continuously driven with the turn signal flashing may result in confusion to other drivers, increasing the risk of a crash.
Owners have filed 60 complaints with NHTSA about the 2017 Mazda 6. The most-reported areas are Unspecified (23), Electrical system (19), Forward collision avoidance (4). Complaints include 1 reported crash, 1 reported injury. That is close to the median of 60 complaints across the 12 Mazda 6 model years in our data.
Used-buyer checklist for the 2017 Mazda 6
Based on where NHTSA recalls and owner complaints cluster for this model year, these are the areas worth checking before you buy:
- Electrical system (19 owner complaints) — Test every switch, window, light and warning lamp on a test drive, and ask about battery or alternator replacements.
- Lighting (1 recall campaign) — Check every exterior light works and look for moisture inside the lamp housings.
- Driver-assist sensors (4 owner complaints) — Check that driver-assist warning lights are off and sensors are clean and undamaged.
- Engine (4 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
At 35 mpg (UK) combined it sits close to the 34 mpg average for Mazda models in our database.
Of the 12 Mazda 6 model years we cover, the 2017 ranks 4th for combined fuel economy on its best configuration (35 mpg UK combined, against a high of 36 mpg). See every Mazda 6 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 2017 Mazda 6
Frequently Asked Questions
What engine does the 2017 Mazda 6 have?
It's fitted with a 2.5L 4-cyl regular gasoline engine, paired with a automatic (s6) transmission.
What is the fuel economy of the 2017 Mazda 6?
The most efficient configuration returns around 35 mpg (UK) combined, or 29 mpg on the US EPA cycle. Across all configurations the UK combined figure runs from 34 to 35 mpg.
How much does the 2017 Mazda 6 cost to fuel per year?
The US EPA estimates about $2,300 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 2017 Mazda 6 have a good safety rating?
It holds an overall NHTSA rating of 5 stars, with 5 stars for frontal crash protection.
Does the 2017 Mazda 6 have any recalls?
NHTSA lists 1 safety recall campaign that include the 2017 Mazda 6 (as of 6 October 2026). Most affected areas: Exterior lighting (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 2017 Mazda 6?
Among the 60 owner complaints filed with NHTSA, the most-reported areas are Unspecified (23 complaints), Electrical system (19 complaints), Forward collision avoidance (4 complaints). Complaints are unverified owner reports, not confirmed defects, and raw counts rise with how many cars were sold.
How much interior and luggage space does the 2017 Mazda 6 have?
EPA measures interior passenger volume at 100 cubic feet (about 2,832 litres) and luggage volume at 15 cubic feet (about 425 litres). These are US EPA interior-volume figures, which are measured differently from the UK boot-capacity numbers manufacturers quote.