ADVERTISEMENT
Sort

Filter & Refine

Dealer used
View Layout

MAZDA 6 Used Car Review

Pros

Cons

  • A regular benchmark for handling in medium-car segment
  • Spacious, comfortable and well-presented cabin
  • Latest model well equipped
  • Recent updates have improved availability of safety features
  • Wagon variant not as spacious or practical as it could have been
  • 2.5-litre petrol engine lacks torque
  • Elevated road noise levels
  • No current performance model or all-wheel-drive option
This is general information and should not be relied on as purchasing advice.
MazdaMazda6WhiteDealer usedClear all

Top2017 Mazda 6 6C MY17 (gl) Atenza White 6 Speed Automatic Wagon

  • 44343 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

*** AUTUMN STOCK CLEARANCE SALE ON, DON'T MISS OUT ON THESE FANTASTIC SAVINGS!!! *** FULL SERVICE HISTORY (TICK) LOWEST KM IN AUSTRALIA (TICK) "TOP DEAL" TAG FROM CARSALES (TICK) "GOOD PRICE" TAG FROM CARSALES (TICK) SO WHAT ARE YOU WAITING FOR? WITH ONLY 44,343KM AND FEATURES LIKE WINDOW TINT, BONNET & HEADLIGHT PROTECTORS, RADAR CRUISE CONTROL, SUN ROOF, CARPET FLOOR MATS, SATELLITE NAVIGATION, LEATHER ACCENTED INTERIOR AND LOG BOOKS WITH FULL SERVICE HISTORY, THIS 2017 MAZDA 6 ATENZA 2.5L

$33,888 Excl. Gov. Charges
Chatswood, NSW

Dealer used
25/04/2024

Top2017 Mazda 6 GL1031 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 203763 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

**Experience Elegance on Wheels with the Used 2017 Mazda 6 Gl1031 Sport Sedan** Unleash the power of efficiency with our 2017 Mazda 6 GL1031 Sport Sedan, a harmonious blend of luxury and performance. This sleek 4-door beauty, equipped with a robust 2.5i 6-speed automatic engine, promises unparalleled on-road dynamism. Its sporty outlook is complemented by an array of top-notch features: **SkyActiv** technology for improved fuel efficiency, **i-ActivSense** safety features for an assured drive

$14,998 Excl. Gov. Charges
Cannington, WA

Dealer used
25/04/2024

Top2012 Mazda 6 GJ1021 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 288994 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

`Quality vehicles at affordable prices`` We offer great service in finance with our partner Ezilend, past credit problems are ok, click here for no obligation pre approval. https://ezilend.com.au/p/ACSG We are a small family owned and operated business located in Western Sydney just off the M4 between Parramatta and Penrith. With over 15 years experience in selling and financing vehicles, we do everything required to provide a quality vehicle every time. All of our cars come with Roadworthy

$10,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
16 hours ago

Top2013 Mazda 6 GJ1021 GT SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 121670 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

Crazy Daves is a family run business with over 30 years experience in the industry. We stock quality used cars at wholesale prices, with new stock coming in daily. Buy with peace of mind knowing that all of our cars come with warranty, registration, guarantee of clear title and a current safety certficate. We do not stock repaired write offs and offer a large range of very competitive finance options, tailored to suit customers from all backgrounds. Give us a call today, so we can have you driv

$19,990 Drive Away^
Springwood, QLD

Dealer used
24/04/2024

Top2014 Mazda 6 GJ1032 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 109302 km
  • Other
  • Auto
  • 4

Spacious wide-bodied sedan with the powerful 2.5 litre engine, six speed T-Bar Tiptronic auto, cruise and traction control, front side air bags, SatNav, Bluetooth, smart phone connectivity, selectable drive modes, premium sports styled seats, push button start, alloy wheels, tow bar, reverse camera plus more. Moderate 109,000kms with service history and 2 keys.

$17,999 Excl. Gov. Charges
Rockingham, WA

Dealer used
15 hours ago

Top2017 Mazda 6 GL1031 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 96710 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

**** Yes this vehicle is available now and ready for immediate delivery **** This one owner wagon was sold and serviced by us from new and is fitted with genuine Mazda accessories including mats, roof racks, towbar. Optioned with window tint, 2 keys and includes our 10 year/175,000km warranty and a full tank of fuel. Located one hour north of Brisbane and guaranteed to pass any inspection. Further discounts may apply if you finance with us so ask about our bank beating finance plans. We despera

$24,970 Excl. Gov. Charges
Maroochydore, QLD

Dealer used
25/04/2024

2013 Mazda 6 GJ1021 GT SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 158861 km
  • Wagon
  • Auto
  • 4 cyl 2.2L

Presenting the 2013 Mazda 6, a car designed for the discerning driver who demands both practicality and performance in one accessible package. Known for its dependability and captivating design, this desirable model exemplifies Mazda's reputation for creating cars that offer a scintillating driving experience and unimpeachable reliability. As soon as you step into the 2013 Mazda 6 you'll be surrounded by comfort and convenience. Inside, spacious interiors and premium upholstery enhance your dr

$16,990 Drive Away^
Eagle Farm, QLD

Dealer used
4 hours ago

2017 Mazda 6 GL1031 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 52328 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Discover Driving Excellence: 2017 Mazda 6 Sport Prepare to experience driving excellence with the 2017 Mazda 6 Sport. Crafted to exceed expectations, this sedan offers a perfect blend of style, performance, and comfort. Whether you're commuting to work or embarking on a weekend getaway, the Mazda 6 Sport promises to elevate your driving experience and make every journey a memorable one. Sleek and Sporty Design: Stand out from the crowd with the Mazda 6 Sport's sleek and sporty design. Its flo

$22,990 Excl. Gov. Charges
Maddington, WA

Dealer used
8 hours ago

2012 Mazda 6 GJ1031 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 223584 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

MAZDA 6 SPORT FINISHED IN WHITE WITH BLACK LEATHER UPHOLSTRY, BLUETOOTH, MULTI-FUNCTION STEERING WHEEL, DUALZONE CLIMATE CONTROL, MAPS, REVERSING CAMERA AND MUCH MUCH MORE HAS 2 SETS OF GENUINE MAZDA KEYS AND FULL SERVICE HISTORY. TEST DRIVE TODAY AT MOTORWORLD. 934-942 Ipswich Road, Moorooka on the MAGIC MILE, this is one of over 100 quality sports, prestige, family, 4WD, commercial and performance vehicles ready for immediate delivery. Need finance? We are the motor finance experts with ons

$18,888 Drive Away^
Moorooka, QLD

Dealer used
8 hours ago

2011 Mazda 6 GH1052 MY12 Touring White 5 Speed Sports Automatic Sedan

  • 164200 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

** The Car is Available ** Call directly 0247 29 05 09 Business established in 1973 No Pressure. No Obligation Automatic "Touring" Edition 165,000ks Rego 15/2/2025 Includes Free Car History Report (PPSR) Includes Free Current Pink Slip Guaranteed Clear Title Includes Free Car History Report ? Not Written Off? No Flood Damage Neat, Clean and Tidy ? Call for immediate response ph. 0247 29 05 09 Western Sydney Car Sales 2073 Castlereagh Road Penrith Opp Hertz Car Rentals Open 6 Days - Close

$8,850 Excl. Gov. Charges
Penrith, NSW

Dealer used
9 hours ago

2015 Mazda 6 GJ1032 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 112943 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

** PRE-PURCHASE SAFETY INSPECTION COMPLETED ** ALL OUR PRE-OWNED VEHICLES UNDERGO A SAFETY INSPECTION AND OIL & FILTER REPLACEMENT TO ENSURE OUR CUSTOMERS PEACE OF MIND WHEN CHOOSING THEIR NEXT VEHICLE. ** QUICK & EASY FINANCE OPTIONS ** WE CAN TAILOR THE FINANCE PACKAGE TO SUIT YOUR NEEDS AND OFFER OVER THE PHONE AND FACE TO FACE COMPETITIVE REPAYMENT & INTEREST DEALS. GIVE US A CALL NOW FOR FURTHER INFORMATION. ** TRADE-IN WITH US OR RECEIVE A FREE QUOTE FOR YOUR CURRENT VEHICLE *

$20,990 Excl. Gov. Charges
Willagee, WA

Dealer used
11 hours ago

2015 Mazda 6 GJ1022 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 271688 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

** The Car is Available ** Call directly 0247 29 05 09 Business established in 1973 No Pressure. No Obligation Automatic Very Clean and Tidy Includes Free Car History Report (PPSR) Includes Free Current Pink Slip Guaranteed Clear Title Includes Free Car History Report ? Not Written Off? No Flood Damage Neat, Clean and Tidy ? Call for immediate response ph. 0247 29 05 09 Western Sydney Car Sales 2073 Castlereagh Road Penrith Opp Hertz Car Rentals Open 6 Days - Closed Sunday 20 min from Wi

$8,850 Excl. Gov. Charges
Penrith, NSW

Dealer used
12 hours ago

2008 Mazda 6 GH Classic White 5 Speed Auto Activematic Sedan

  • 176501 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Mazda 6 Auto Wagon with attractive features like: FULL Service History. Cruise Control. Alloy wheels. Fog Lights. etc. Excellent condition inside and outside. Mechanically in very good condition. Inspection and test drive will impress. Clear Title and No accident history. PPSR Copy attached in last Photo. RWC and Registration included in the price. Comprehensive Warranty options available for 1, 3 & 5 years UN-LIMITED Kms. Please feel free to contact us for further information r

$8,990 Excl. Gov. Charges
Watsonia, VIC

Dealer used
13 hours ago

2018 MAZDA Mazda6 TOURING

  • 33000 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

2018 White MAZDA 6 TOURING SEDAN $27,990 Inc RWC, REGO & WARRANTY ⭐FREE a FIVE YEAR WARRANTY⭐ 🔹5 Star Safety Rating 🔹ONLY 33,000 kms 🔹4 Cyl Petrol 🔹6 Speed Automatic 🔹Fuel Efficiency 6.6L/100km 🔹Keyless Entry and Drive 🔹Multi Function Steering Wheel 🔹MP3 Compatible Audio/CD Player 🔹Mobile Phone Connectivity 🔹Electric Parking Brake 🔸Alloy wheels 🔸Aux in & USB 🔸Cruise Control Intelligent/Active 🔸Bluetooth 🔸Reverse Camera 🔸Parking Sensors Front & Back 🔸Heads up Display 🔸Satelli

$27,990 Excl. Gov. Charges
Coopers Plains, QLD

Dealer used
14 hours ago

2014 Mazda 6 GJ1032 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 109302 km
  • Other
  • Auto
  • 4

Spacious wide-bodied sedan with the powerful 2.5 litre engine, six speed T-Bar Tiptronic auto, cruise and traction control, front side air bags, SatNav, Bluetooth, smart phone connectivity, selectable drive modes, premium sports styled seats, push button start, alloy wheels, tow bar, reverse camera plus more. Moderate 109,000kms with service history and 2 keys.

$17,999 Excl. Gov. Charges
Rockingham, WA

Dealer used
15 hours ago

2010 Mazda 6 GH MY10 Diesel White 6 Speed Manual Wagon

  • 265559 km
  • Wagon
  • Manual
  • 4 cyl 2.2L

MAZDA6 DIESEL GH MY10 DIESEL TURBO 2.2L 6so MANUAL *** LOG BOOKS *** 17" Alloy wheels, climate control air con dual zone, body kit, tints, cruise control, power windows / mirrors / steering, rain sensing wipers, leather multi function steering wheel, trip computer, central locking, traction control, multi airbags, ABS brakes, fog lights, 6 stack CD player, brake assist, dynamic stability control, electronic brake force distribution, engine immobilizer, spoiler, dusk sensing head lights, parking

$6,950 Excl. Gov. Charges
Minto, NSW

Dealer used
15 hours ago

2012 Mazda 6 GJ1021 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 288994 km
  • Sedan
  • Auto
  • 4 cyl 2.2L

`Quality vehicles at affordable prices`` We offer great service in finance with our partner Ezilend, past credit problems are ok, click here for no obligation pre approval. https://ezilend.com.au/p/ACSG We are a small family owned and operated business located in Western Sydney just off the M4 between Parramatta and Penrith. With over 15 years experience in selling and financing vehicles, we do everything required to provide a quality vehicle every time. All of our cars come with Roadworthy

$10,995 Excl. Gov. Charges
Minchinbury, NSW

Dealer used
16 hours ago

2002 Mazda 6 Limited ! Serviced & Inspected !

  • 226799 km
  • Sedan
  • Auto
  • 4 cyl 2.3L

This Mazda 6 represents the perfect everyday sedan. It is ideal for many uses ensuring your satisfaction for whether it is a car for daily commuting, the family or even business use. With its sharp looks and great features it will not disappoint. Be sure that this Mazda is of the highest quality as it looks and drives like brand new and has been very well taken care of. We have also completed a full service and inspection at our onsite workshop ensuring that this Mazda has a long life to go !

$5,949 Excl. Gov. Charges
Lansvale, NSW

Dealer used
24 hours ago

2022 Mazda 6 600S Touring White 6 Speed Automatic Sedan

  • 18292 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

Calling all new Car Buyers!! Get down CCB and check out this 2022 Mazda6 Touring, it is extremely well appointed and in amazing condition! New Car Warranty - Extremely Low Km's - Fantastic Condition - 1 Owner - Genuine reason for sale Finance Available - Trades Welcome - Call*****4199 and Talk a Deal Today Factory Features Central Locking Remote Control - Tinted Windows - 17 Inch Alloy Wheels - Auto Climate Control with Dual Temp Zones - Anti-Lock Braking - Lane Departure Warning - Lane

$32,990 Drive Away^
Bungalow, QLD

Dealer used
25/04/2024

2014 Mazda 6 6C MY14 Upgrade Sport White 6 Speed Automatic Wagon

  • 276695 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

This vehicle is in great condition for its age, has Full-Service History and is sure to impress. At this advertised price it is astonishingly affordable. Be sure to act quick to take advantage of this amazing offer before someone else does. Comes with a Free - 1 year dealer warranty, a current RWC is supplied and all on road costs are included driveaway, no more to pay! Why buy your car from us Because it’s the intelligent choice! Established in 1988, our Dealership has been offering uniq

$12,999 Excl. Gov. Charges
Braybrook, VIC

Dealer used
25/04/2024

2007 MAZDA Mazda6 SPORTS

  • 200000 km
  • Wagon
  • Auto
  • 4 cyl 2.3L

2006 MAZDA 6 WAGON /4 CYLINDER AUTOMATIC / 200000 KMS WILL COME WITH QLD/ REGO 11/11/24 ROADWORTY CERTIFACE /PPSR CLEAR STAT WARRANRTY ICE COLD ASIR /GOOD TYRES CLEAN AND TIDY DRIVES WELL CAN ASSISTE WITH FINANCE /TRADE IN WELCOME/ INSPECTIONS BY APPOIMENT / LOCATED NAMBOUR CALL KEV ON

$6,195 Drive Away^
Diddillibah, QLD

Dealer used
25/04/2024

2005 Mazda 6 GG Classic White 4 Speed Auto Activematic Hatchback

  • 213711 km
  • Hatchback
  • Auto
  • 4 cyl 2.3L

******FREE 6 MONTHS WARRANTY****** **AS TRADED** AUTO AIR STEER GREAT FIRST CAR FULL POWER OPTIONS LOOKS AND DRIVES GOOD INCLUDE 3 MONTHS REGO $3990. We are now open to the public Monday to Saturday 9-5. 16A Carlingford St Regents Park Over 40 cars in stock in one location All cars are wholesale priced to clear, where quality costs no more 1-3 years warranty with 24/7 Roadside assist available on selected vehicles National delivery options available Price is exclusive of dealer and gov

$3,990 Drive Away^
Regents Park, NSW

Dealer used
25/04/2024

2008 Mazda 6 GH Series 1 Limited Sedan 4dr Spts Auto 5sp 2.5i [Feb] White Sports Automatic Sedan

  • 140580 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

** We Want Your Car ** Why buying from us ? Several years in the industry, we prioritise our customers above all else. We Want Your Car isn't just good, it's 5 - Star AMAZING! Google & Facebook with 500+ reviews, customers rave about our cars, service, and prices. Don't miss out! *** Step into the world of unlimited adventure with our 2008 Mazda 6 GH Series 1 Limited Sedan! This beauty, cloaked in a pristine white exterior, comes complete with a sporty automatic transmission that makes driving

$11,499 Excl. Gov. Charges
Cannington, WA

Dealer used
25/04/2024

2017 Mazda 6 GL1031 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Sedan

  • 203763 km
  • Sedan
  • Auto
  • 4 cyl 2.5L

**Experience Elegance on Wheels with the Used 2017 Mazda 6 Gl1031 Sport Sedan** Unleash the power of efficiency with our 2017 Mazda 6 GL1031 Sport Sedan, a harmonious blend of luxury and performance. This sleek 4-door beauty, equipped with a robust 2.5i 6-speed automatic engine, promises unparalleled on-road dynamism. Its sporty outlook is complemented by an array of top-notch features: **SkyActiv** technology for improved fuel efficiency, **i-ActivSense** safety features for an assured drive

$14,998 Excl. Gov. Charges
Cannington, WA

Dealer used
25/04/2024

2017 Mazda 6 GL1031 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 96710 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

**** Yes this vehicle is available now and ready for immediate delivery **** This one owner wagon was sold and serviced by us from new and is fitted with genuine Mazda accessories including mats, roof racks, towbar. Optioned with window tint, 2 keys and includes our 10 year/175,000km warranty and a full tank of fuel. Located one hour north of Brisbane and guaranteed to pass any inspection. Further discounts may apply if you finance with us so ask about our bank beating finance plans. We despera

$24,970 Excl. Gov. Charges
Maroochydore, QLD

Dealer used
25/04/2024

2017 Mazda 6 6C MY17 (gl) Atenza White 6 Speed Automatic Wagon

  • 44343 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

*** AUTUMN STOCK CLEARANCE SALE ON, DON'T MISS OUT ON THESE FANTASTIC SAVINGS!!! *** FULL SERVICE HISTORY (TICK) LOWEST KM IN AUSTRALIA (TICK) "TOP DEAL" TAG FROM CARSALES (TICK) "GOOD PRICE" TAG FROM CARSALES (TICK) SO WHAT ARE YOU WAITING FOR? WITH ONLY 44,343KM AND FEATURES LIKE WINDOW TINT, BONNET & HEADLIGHT PROTECTORS, RADAR CRUISE CONTROL, SUN ROOF, CARPET FLOOR MATS, SATELLITE NAVIGATION, LEATHER ACCENTED INTERIOR AND LOG BOOKS WITH FULL SERVICE HISTORY, THIS 2017 MAZDA 6 ATENZA 2.5L

$33,888 Excl. Gov. Charges
Chatswood, NSW

Dealer used
25/04/2024

2014 Mazda 6 GJ1021 MY14 GT SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 195669 km
  • Wagon
  • Auto
  • 4 cyl 2.2L

If you are interested in any of our vehicles please don’t hesitate to enquire as we will be happy to answer any questions and explain the nature of the sales moving forward. We can also offer virtual tours via video link to view our vehicles. Anyone in Gippsland region; we have a contact point available. Please enquire on your chosen vehicle and we will make the necessary arrangements. ALL PRICES INCLUDE ROADWORTHY CERTIFICATE AND STAMP DUTY - DRIVE AWAY NO MORE TO PAY!!!!

$15,500 Drive Away^
Pakenham, VIC

Dealer used
25/04/2024

2005 Mazda 6 GG MPS (Leather) White 6 Speed Manual Sedan

  • 225990 km
  • Sedan
  • Manual
  • 4 cyl 2.3L

Looking for a turbo-charged sedan that packs a punch? Check out this 2005 MAZDA6 MPS (LEATHER) GG! With its 2.3L engine and 6-speed manual transmission, this car is sure to impress. Priced at $11,990.00 AUD, it's a steal for all the features it offers. From the luxurious leather interior to the power sunroof and premium sound system, this MAZDA6 has it all. With 225990 km on the odometer, it's still got plenty of life left in it. Don't miss out on your chance to own this sleek white sedan with

$10,990 Excl. Gov. Charges
Cardiff, NSW

Dealer used
25/04/2024

2018 Mazda 6 GL1031 Touring SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 74800 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

e pleased to be selling this well presented 2018 Mazda 6 GL1031 Touring Wagon 5dr SKYACTIV-Drive 6sp 2.5i Extremely clean and well looked after, 4 CYL, AUTO, One owner with full dealer service history, Leather trim, Gps, Bluetooth, Reverse camera, Front elec seat, Premium Sound System with cd / usb / aux / amp & Digital Radio, Blind Spot Sensor, Driver Attention Detection, Collision Mitigation, Elec Stability / Traction and Cruise Control, Hill Holder, 2 Zone Climate Control Air Conditioning

$25,990 Drive Away^
Kedron, QLD

Dealer used
24/04/2024

2020 Mazda 6 GL1033 Sport SKYACTIV-Drive White 6 Speed Sports Automatic Wagon

  • 92468 km
  • Wagon
  • Auto
  • 4 cyl 2.5L

Unbeatable Deals on Vehicles at South West Sydneys Premier Dealership! Looking for a reliable and stylish vehicle? Look no further! Our dealership in South West Sydney, part of Australias largest automotive group, offers an extensive range of models with great finance options and the highest trade-in values around. Price Beat Promise - We will beat any genuine Dealer Quote on your next car. **Finance Options to Suit You** We understand that purchasing a vehicle is a significant investment,

$26,450 Excl. Gov. Charges
Liverpool, NSW

Dealer used
24/04/2024

Overview of the Mazda Mazda6

Overview of the Mazda Mazda6

MAZDA 6 GENERATIONS

2002-2007

2007-2012

2013 onwards

RUNNING COSTS

Fuel Consumption

2.2L 4-cylinder turbo diesel: 5.4 litres per 100km

2.5L 4-cylinder: 6.6 litres per 100km

= Highly economical.

= Good economy.

= Average fuel use.

= Heavy consumption.

Servicing

SIMILAR MODELS TO MAZDA 6

WHAT TO LOOK OUT FOR: MAZDA 6 (2012 to 2016)

Fundamentally a well built car, the Mazda 6 has a pretty good reputation for reliability.

The automatic transmission is one area we'd pay close attention to, though, as there have been reports of failures.

Diesel-particulate filters and their requirement to be cleaned out periodically have been a long-term bug-bear in Mazda (and other modern) diesels.

The computer's way to do this is to inject more fuel into the engine to regenerate the filter, but sometimes that extra fuel finds its way into the sump where it dilutes the engine's lubricant.

But Mazda did develop revised software to help prevent this happening, so it would be wise to check with a dealer to see if a particular vehicle is running the upgraded program.

Mazda is hardly alone with this problem and it's a common one in new-age diesels that only get driven around the suburbs.