MercuryGrand Marquis1993Overview/mercury/grand-marquis/1993/base/

1993 Mercury Grand Marquis

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1993 Grand Marquis.

Body PASSENGER CARTransmission Automatic 4-spd

The 1993 Mercury Grand Marquis is a traditional passenger car equipped with a 4-speed automatic transmission and an engine requiring 5.0 quarts of 5W-20 API oil, returning an EPA-estimated 19 combined mpg. Its reliability profile is defined by 186 total owner complaints and three recalls, with the power train standing out as the primary problem area. When contextualized within the model's 1990–2011 complaint history, this volume places the 1993 model in a moderate position—well above the low of nine complaints in 2011, but substantially below the 487-peak seen in 2005—signifying a model year with notable but not exceptional trouble spots for researchers to track.

Model year201120102009200820072006200520041993

Quick specs

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

Engine oil capacity5.0 qtOEM · verified
Engine oil type5W-20 APIOEM · verified
EPA fuel economy16/24/19 mpgEPA · verified

Fitment & sizes

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

OE service part numbers OEM · verified

ThermostatRT1229

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length212.6 in
Overall width78 in
Overall height56.7 in
Wheelbase114.6 in
Curb weight3763 lb
Weight distribution (front / rear)56/44

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 24 / 19 mpg
DrivetrainRear-Wheel Drive
Passenger volume111 cu ft
Cargo volume21 cu ft
Recommended fuelRegular Gasoline

Service quick specs OEM factory data

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

This engine holds 5.0 qt of 5W-20 API engine oil, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Engine CoolantETHYLENE GLYCOL
Engine OilSYNTHETIC · 5W-20 · API
Engine Oil Capacity5.0 qt
Power Steering FluidATF

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 30,000 mi; coolant every 30,000 mi. The big-interval services (every 30,000 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.

At 7,500 miTire & Wheel Assembly (rotate)
Every 7,500 miEngine Oil (drain & refill) · Engine Oil Filter (replace)
Every 15,000 miSteering Linkage (inspect) · Suspension System (inspect) · Tire & Wheel Assembly (rotate)
Every 30,000 miBrake Linings (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Engine Coolant System (drain, flush & refill) · Exhaust System Heat Shield (inspect) · Spark Plugs (replace)
Every 60,000 miAccessory Drive Belt (inspect) · PCV Valve (replace)
Every 100,000 miDrive Axle Assembly (drain & 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 1993 Grand Marquis sits at a relative low point in a complaint arc that spiked sharply in 1992 (346 complaints, 8 investigations) and then rose again through 1997 (383 complaints, 7 investigations). With 186 complaints, 3 recalls, and 6 investigations, 1993 is notably quieter than the years immediately before and after, though its 78 TSBs match 1994’s count, indicating ongoing service attention. The top complaint areas—Power Train (30), Service Brakes (25), Vehicle Speed Control (22), and Electrical System (21)—are consistent with the generation’s pattern, and the 22 fire complaints and 12 crash complaints are present but not the highest in the record. The data does not specify root causes for these issues, so no single defect can be isolated. Overall, 1993 is a comparatively stable year within a generation marked by rising complaints and recalls, making it a better choice than the peak years like 1992 or 1997, but still warranting a careful pre-purchase inspection focused on the listed complaint areas.

3
Open recalls
NHTSA campaigns
78
Service bulletins
Manufacturer communications
6
ODI investigations
Office of Defects Investigation
186
Owner complaints
12 involved a crash · 22 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 186 complaints on record, top 8 components.

Power Train30
Service Brakes, Hydraulic25
Vehicle Speed Control22
Electrical System21
Steering16
Exterior Lighting10
Visibility10
Air Bags9

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

08V051000Vehicle Speed Control:Cruise ControlReported 04/02/2008

FORD IS RECALLING 225,000 MY 1992-2003 ECONOLINE, MY 1993-1995 TAURUS SHO, MY 1992-1998 CROWN VICTORIA, MY 1993 BRONCO, F-SERIES, MY 1995-1997 F-SERIES SUPER DUTY STRIPPED CHASSIS, MY 1992-1998 MERCURY GRAND MARQUIS… Remedy: DEALERS WILL INSTALL A NEW WIRING HARNESS, OR REPLACE THE MATING ELECTRICAL COMPONENT. THE RECALL BEGAN ON FEBRUARY 18, 2008. OWNERS MAY CONTACT FORD AT 1-800-392-3673.

07V336000Vehicle Speed ControlReported 03/08/2007

ON CERTAIN PICKUP TRUCKS, PASSENGER VEHICLES, SPORT UTILITY VEHICLES, AND MOTOR HOMES CHASSIS, THE SPEED CONTROL DEACTIVATION SWITCH MAY, UNDER CERTAIN CONDITIONS, LEAK INTERNALLY AND THEN OVERHEAT, SMOKE, OR BURN. Remedy: DEALERS WILL INSTALL A FUSED WIRING HARNESS. OWNERS OF THE PASSENGER CARS INCLUDED IN THIS CAMPAIGN WILL BE INSTRUCTED TO RETURN THEIR VEHICLES TO THEIR DEALERS TO HAVE THE SPEED…

Technical service bulletins NHTSA · verified

Showing 5 of 78 bulletins on record with NHTSA.

BulletinDateComponentSummary
CSP 08B042008-05-15Fuel System, GasolineFORD/LINCOLN MERCURY: CERTAIN 1992-2001 MODEL YEAR CROWN VICTORIA, GRAND MARQUIS, AND…
031812003-09-15Electrical SystemREMOTE KEYLESS ENTRY (RKE) - SERVICE TIPS. *TT
031482003-07-21Power TrainNEW TRANSMISSION COOLER FLUSHER - SERVICE TIPS. 2003 ESCORT AND SUPER DUTY F SERIES…
022082002-10-14EquipmentCLIMATE CONTROL A/C SERVICE TECH TIPS. *EH
021762002-09-02Exterior LightingLAMP-BRAKE-INVADVERTENT DISABLING OF BRAKE SHIFT INTERLOCK. *MJ

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 Grand Marquis. 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 1993 Grand Marquis take?

5.0 qt of SYNTHETIC 5W-20 API, per the factory manual.

Does the 1993 Grand Marquis have open recalls?

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

What gas mileage does the Grand Marquis get?

EPA figures are 16 city / 24 highway / 19 combined mpg.