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1991 Mazda MX-6

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1991 MX-6.

Transmission Automatic 4-spd

The 1991 Mazda MX-6, paired with a 4-speed automatic transmission and rated at 17/23/19 mpg city/highway/combined, represents an early entry in the model's complaint-tracked run spanning 1990 through 1999. With 16 total owner complaints led by seat belt concerns and a single recall on record, this model year falls well below the 1993 peak of 59 complaints but does not reach the near-clean low of 4 complaints seen in 1997. For a researcher, that places the 1991 MX-6 in the rising-portion of the model's reliability arc — a period when complaint volume was still building toward its mid-cycle high before tapering in later production years.

Model year1995 1994 1993 1992 1991 1990 1989 1988

Quick specs

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

EPA fuel economy17/23/19 mpgEPA · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length	177.2 in
Overall width	66.5 in
Overall height	53.5 in
Wheelbase	99.2 in
Curb weight	2734 lb

Ratings & economy EPA / vPIC

EPA city / highway / combined	17 / 23 / 19 mpg
Drivetrain	Front-Wheel Drive
Passenger volume	100 cu ft
Cargo volume	15 cu ft
Recommended fuel	Premium Gasoline

Performance & power Independent road tests

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

Independent road tests for the MX-6 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

7.0–7.6 sec0–60 mph (tested)quickest 7.00 sec — 1989 GT Coupe

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1989	GT Coupe 2.2L Turbo I-4	7.00 sec	15.30 sec	145 hp	FWD
1989	GT 4WS Coupe 2.2L Turbo I-4	7.40 sec	15.70 sec	145 hp	FWD
1988	GT Coupe 2.2L Turbo I-4	7.50 sec	15.70 sec	145 hp	FWD
1988	GT Coupe 2.2L Turbo I-4	7.60 sec	16.00 sec	145 hp	FWD

Service quick specs OEM factory data

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

Lubricants & capacities

Engine Coolant	ETHYLENE GLYCOL
Power Steering Fluid	DEXRON VI OR MERCON V

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 5,000 mi.

Every 5,000 mi	Engine Oil Filter (replace)
Every 7,500 mi	Engine Oil (drain & refill)
Every 30,000 mi	Accessory Drive Belt (inspect) · Axle Shaft Oil Seal (inspect) · Body Fasteners (torque) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Air Filter Element (replace)
Every 60,000 mi	Fuel Filter (replace) · Timing Belt (replace)

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 1991 Mazda MX-6 recorded 16 complaints, 1 recall, and 2 investigations, marking a slight improvement over the 18 complaints from the 1990 model year. Across the generation's federal record, complaint volumes remained consistently low through 1992 before spiking dramatically in 1993 with 59 complaints and 3 recalls. Positioned at the tail end of this early, stable arc, the 1991 model implies a mature, pre-redesign build with fewer documented systemic growing pains than the problematic later years. For 1991 specifically, Seat Belts and Power Train tied as the top complaint areas with 5 reports each, though the data does not specify the root causes; crash and fire incidents are minimal at 1 and 0, respectively. Given its placement in the low-volume early arc and avoidance of the subsequent generation's issue spike, the 1991 MX-6 is a favorable year to buy for a used shopper seeking reliability.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

1 involved a crash · 0 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’90’91’92 ’93 ’94 ’95 ’96 ’97 ’98 ’99

Owner complaints filed with NHTSA, by component

All 16 complaints on record, top 7 components.

Seat Belts5

Power Train5

Service Brakes, Hydraulic2

Engine & Engine Cooling1

Engine & Engine Cooling,Exterior Lighting1

Structure1

Vehicle Speed Control1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

93E035000Service Brakes, Hydraulic:Foundation Components:Drum:DrumReported 13/10/1993

THE GROOVE FOR THE REAR WHEEL BEARING RETAINER RING WAS INCORRECTLY MACHINED. Remedy: MIDAS SHOPS WILL REPLACE THE BRAKE DRUMS WITH OTHER BRAKE DRUMS FROM ANOTHER SUPPLIER.

Technical service bulletins NHTSA · verified

Showing 5 of 14 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
00-003-19-3583	2019-03-20	Engine And Engine Cooling	In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose…
09-009-19-3566	2019-01-14	Electrical System	In accordance with Federal regulations, follow the procedure listed below when replacing…
09-034-18-3430a	2018-10-10	Vehicle Speed Control	In accordance with Federal regulations, follow the procedure listed below when replacing…
09-034-18-3430	2018-08-31	Vehicle Speed Control	In accordance with Federal regulations, follow the procedure listed below when replacing…
09-035-17-3080	2017-08-07	Electrical System	In accordance with Federal regulations, follow the procedure listed below when replacing…

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 MX-6. 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.

Reference guides

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

Vehicle recalls & TSBs OBD-II trouble codes Maintenance schedules Fluid capacities & specs

Frequently asked

Does the 1991 MX-6 have open recalls?

NHTSA lists 1 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the MX-6 get?

EPA figures are 17 city / 23 highway / 19 combined mpg.