MazdaMAZDA62015Overview/mazda/mazda6/2015/base/

2015 Mazda MAZDA6

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2015 MAZDA6.

Body PASSENGER CARTransmission Automatic (S6)

The 2015 Mazda6 is a passenger car paired with a six-speed automatic transmission, using 4.5 quarts of 0W-20 oil and achieving an EPA-rated 26 mpg city, 37 mpg highway, and 30 mpg combined. This model year recorded 60 owner complaints—primarily concerning the service brakes—and was subject to three recalls. Within the model’s complaint history from 2002 to 2021, the 2015 edition marks a substantial improvement over the 2009 peak of 385 complaints, though it remains above the 2020 low of just 2 complaints.

Model year202020192018201720162015201420132012

Quick specs

Fluid capacities, tune-up values and fuel economy at a glance.

Engine oil capacity4.5 qtOEM · verified
Engine oil type0W-20OEM · verified
EPA fuel economy26/37/30 mpgEPA · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI NS · NS CCA battery, OE oil filter 1WPE14302. Each part links to every other vehicle that shares it, so a part you already stock may fit more of your fleet than you'd expect.

Battery groupBCI NS · NS CCAOEM · verified
Tail / brake / turnFUSEOEM · verified
Tire sizeP225/45R19OEM · verified
Wheel / rim7.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter1WPE14302
Engine air filterPE07133A0A
Spark plugPE5R18110A
Battery0000800035WB
Front wiper bladesKA0G67330 alt KD3767330
Serpentine beltPY0115908 alt PY0115909A
ThermostatPE0115171

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S6)

Dimensions & weight NHTSA vPIC

Overall length192.5 in
Overall width72.4 in
Overall height57.1 in
Wheelbase111.4 in
Curb weight3183 lb
Track (front / rear)62.6 / 62.2 in
Weight distribution (front / rear)59/41

Ratings & economy EPA / vPIC

EPA city / highway / combined26 / 37 / 30 mpg
DrivetrainFront-Wheel Drive
Passenger volume100 cu ft
Cargo volume15 cu ft
Recommended fuelRegular Gasoline

Performance & power Independent road tests

0–60 mph, quarter-mile, horsepower and torque from independent road tests.

Independent road tests for the MAZDA6 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.1–8.2 sec0–60 mph (tested)quickest 6.10 sec — 2021 Carbon Edition Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
2014i Grand Touring Sedan 2.5L I-47.00 sec15.60 sec184 hpFWD
2014i Grand Touring Sedan 2.5L I-47.40 sec15.70 sec184 hpFWD
2014i Touring Sedan 2.5L I-47.70 sec16.00 sec184 hpFWD
2014i Sport Sedan 2.5L I-47.80 sec15.90 sec184 hpFWD
2014i Touring Sedan 2.5L I-47.80 sec15.90 sec184 hpFWD
2014i Sport Sedan 2.5L I-47.90 sec16.10 sec184 hpFWD
2014i Grand Touring Sedan 2.5L I-48.20 sec16.40 sec184 hpFWD
2016i Grand Touring Sedan 2.5L I-47.00 sec15.50 sec184 hpFWD

Service quick specs OEM factory data

Capacities, torques and tune-up values from the factory service manual.

This engine holds 4.5 qt of 0W-20 engine oil, SAE J1703 brake fluid. Torque the oil drain plug to 22.0-29.0 ft-lbs. The firing order is 1-3-4-2. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity8.2
Brake FluidSAE J1703
Engine Coolant Capacity7.3-7.6
Engine Oil0W-20
Engine Oil Capacity4.5 qt
Fuel Tank Capacity16.4 gallons

Engine torques

Intake Manifold to Engine Bolts12
Engine Oil Pan Drain Plug22.0-29.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs15.0-19.0 ft-lbs

Chassis torques

Steering Track (Rod End) Bolts35.0-43.0 ft-lbs

Ignition

Cylinder Firing Order1-3-4-2
Curb Idle Speed (No Load)560-660 rpm
Curb Idle Speed (Secondary Under Load)650-800 rpm
Curb Idle Speed (No Load)550-650 rpm
Curb Idle Speed (Secondary Under Load)650-800 rpm
Curb Idle Speed (No Load)500-600 rpm
Curb Idle Speed (Secondary Under Load)650-800 rpm
Curb Idle Speed (No Load)550-650 rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity16.5-18.1 lbs
Oil TypeFD46XG
Oil Capacity3.38 oz

Service checks

Engine Compressionpis 111-138 / max variation 23.2 psi
Engine Oil Pressure57-94 psi
Engine Oil Pressure RPM3000 rpm
Intake Valve Lash0.009-0.011 in
Exhaust Valve Lash0.011-0.012 in

Brakes

Brake Caliper Bolt to Carrier TorqueFront: 25; Rear: 25 /
Brake Caliper Carrier to Hub Bolt TorqueFront: 68-; Rear: 38-; Front: 68-
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Vented Rotor Minimum Thickness for ReplacementFront: 1.020; Rear: .310
Vented Rotor Minimum Thickness after RefinishFront: 1.060; Rear: .350
Variation from Parallelism Thickness Variation.0006
Maximum Rotor RunoutFront: .002; Rear: .004

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
127.0-53.0 inch lbs, Step 2: 71.0-97.0 inch lbs.27–53 in
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
120.0-23.0 ft. lbs., Step 2: 80.0-100.020–23 ft. lbs
Cylinder Head — tightening sequence 4 stages

Prep Maximum cylinder head bolt length should not exceed 146.0 mm. Replace bolts if they exceed maximum length. Coat bolts with clean engine oil. · Step 1 · 2.2-8.0 ft. lbs.

29.5-12.5 ft. lbs.9.5–12.5 ft. lbs
332.0-34.0 ft. lbs.32–34 ft. lbs
488 degrees-92 degrees88 degrees
588 degrees-92 degrees88 degrees

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 7,500 mi; spark plugs every 75,000 mi; coolant at 60,000 mi. The big-interval services (at 60,000 mi for coolant, and the transmission fluid) are the ones owners most often skip — on a lower-mileage example, assume the original fluids are still in it and check them first.

Every 7,500 miBody Latches, Locks & Hinges (lubricate) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miBrake Linings (inspect) · Brake Rotor (inspect)
Every 30,000 miBody Fasteners (torque) · Brake Line (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Fuel Line (inspect) · Steering Linkage (inspect)
Every 37,500 miAccessory Drive Belt (inspect) · Engine Air Filter Element (replace)
Every 45,000 miExhaust System (Complete) (inspect) · Exhaust System Heat Shield (inspect)
At 60,000 miEngine Coolant System (drain, flush & refill)
Every 60,000 miFuel Evaporative Emission Control System Lines (inspect)
Every 75,000 miSpark Plugs (replace)
At 180,000 miEngine Coolant System (drain, flush & refill)

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

The 2015 Mazda MAZDA6 sits within a generation that shows a clear long-term improvement trajectory. Compared to the 2014 spike of 137 complaints and 4 recalls, the 2015 model year registered 60 complaints and 3 recalls—a notable decline that aligns with the broader pattern of sustained complaint reduction through 2021. The following years (2016–2021) demonstrate continued improvement, with recalls dropping to just 1 per year from 2016 onward and complaints falling as low as 2 in 2020. Service brakes (10), air bags (6), and visibility/wiper (5) were the top complaint areas in 2015, while crash-related complaints numbered 6 with zero fire complaints, suggesting no systemic safety catastrophes specific to this model year. The 608 TSBs on record indicate active but routine manufacturer service communications rather than crisis-level fixes. The 2015 MAZDA6 benefits from being post-spike and pre-stabilization, combining improved complaint levels with the advantage of any defect corrections being well-documented by the time of purchase—this is a favorable year to buy within this generation.

3
Open recalls
NHTSA campaigns
608
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
60
Owner complaints
6 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★
Side★★★★★
Rollover★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 60 complaints on record, top 8 components.

Service Brakes10
Air Bags6
Visibility/Wiper5
Structure3
Power Train3
Wheels3
Suspension2
Fuel/Propulsion System2

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

17V393000Parking BrakeReported 22/06/2017

Mazda North American Operations (Mazda) is recalling certain 2014-2015 Mazda6 and 2014-2016 Mazda3 vehicles. Water could possibly enter the brake caliper causing the parking brake actuator shaft to corrode and possibly… Remedy: Mazda will notify owners, and dealers will check the parking brake actuator shafts, replacing any that are corroded, free of charge. Remedy parts are currently unavailable…

14V173000Electrical System:Alternator/Generator/RegulatorReported 03/04/2014

Mazda North America Operations (Mazda) is recalling certain model year 2014 Mazda3 vehicles manufactured June 12, 2013, through December 18, 2013, and model year 2014-2015 Mazda6 vehicles manufactured May 20, 2013… Remedy: Mazda will notify owners, and dealers will reprogram the PCM with updated software, free of charge. The recall began on May 19, 2014. Owners may contact Mazda at 1-800-222-5500…

Technical service bulletins NHTSA · verified

Showing 5 of 608 bulletins on record with NHTSA.

BulletinDateComponentSummary
SA-041-262026-06-18Electrical SystemThis SA supersedes the previously issued SA(s) listed below. The changes are noted in…
01-008-262026-05-01Power TrainThis bulletin supersedes the previously issued bulletin(s) listed below. The changes are…
SA-031-262026-04-30StructureDESCRIPTION Some vehicles may require the replacement of a damaged VIN plate or vehicle…
SA-029-262026-04-21Power TrainThis Service Alert supersedes the previously issued SA listed below: The changes are…
SA-021-262026-04-04Electrical SystemThis Service Alert supersedes the previously issued SAs and bulletin(s) listed below: The…

Common OBD-II trouble codes

The most common OBD-II codes for this vehicle's emissions system. These are standardized SAE J2012 definitions, not vehicle-specific fault reports.

P0420
Catalyst system efficiency below threshold — Bank 1
P0300
Random / multiple cylinder misfire detected
P0171
System too lean — Bank 1
P0455
Evaporative emission system leak detected — large leak
P0128
Coolant thermostat below regulating temperature
P0442
Evaporative emission system leak detected — small leak

VIN tools

Decode factory build data for a specific vehicle by VIN.

VIN
Decode a VIN to confirm the transmission and build data for a specific MAZDA6. OEM
Build data
Plant, GVWR class, engine and body data for any 17-character VIN.
Recalls
Check open recall campaigns against a specific vehicle by VIN.

Vehicles with shared specs

Find every vehicle that shares this one's battery, bulbs, oil capacity, platform or parts.

Reference guides

Cross-vehicle references for the kinds of data on this page.

Frequently asked

How much oil does the 2015 MAZDA6 take?

4.5 qt of 0W-20 ILSAC multigrade engine oil, per the factory manual.

Does the 2015 MAZDA6 have open recalls?

NHTSA lists 3 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the MAZDA6 get?

EPA figures are 26 city / 37 highway / 30 combined mpg.