MercurySable1991Overview/mercury/sable/1991/base/

1991 Mercury Sable

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

Body PASSENGER CAR

The 1991 Mercury Sable is a passenger car whose 4.5-quart oil capacity and 5W-30 API viscosity specification reflect the conventional powertrain design of its era. With 316 total owner complaints on record, the most frequently cited issue area was the Power Train, and the model was subject to five recalls. In the Sable’s reliability history from 1990 to 2009, the 1991 model year falls well below the peak complaint year of 1993 but still above the lowest point in 2006, indicating that while it was not the most problematic year, it was part of an early period of higher owner dissatisfaction.

Model year200920082005200420032002200120001991

Quick specs

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

Engine oil capacity4.5 qtOEM · verified
Engine oil type5W-30 APIOEM · verified

Fitment & sizes

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

OE service part numbers OEM · verified

ThermostatRT1054 alt RT1053

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length192.1 in
Overall width70.9 in
Overall height54.3 in
Wheelbase105.9 in
Curb weight3137 lb
Weight distribution (front / rear)65/35

Service quick specs OEM factory data

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

This engine holds 4.5 qt of 5W-30 API engine oil, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity4.5 qt
Engine Oil5W-30 · API
Engine Oil Capacity4.5 qt

Battery & A/C

RefrigerantR134a
Refrigerant Capacity2.11 lbs
Oil GroupPAG
Oil Type46
Oil Capacity6.60 oz

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 60,000 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 miTire & Wheel Assembly (rotate)
Every 30,000 miAccessory Drive Belt (inspect) · Brake Linings (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Engine Coolant System (drain, flush & refill) · Exhaust System Heat Shield (inspect)
Every 60,000 miSpark Plugs (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.

Compared with 1990’s 209 complaints and 7 recalls, the 1991 Mercury Sable saw complaints rise to 316 while recalls fell to 5 and investigations dipped from 12 to 11, positioning it at the leading edge of a steep upward trend that peaked at 815 complaints in 1993. Across the early years of this federal record, complaints escalated dramatically from 1990 through 1993 before declining, and 1991 sits roughly midway between the baseline and that crest. The 1991 model’s most reported issues clustered in Power Train (97), Engine & Engine Cooling (54), Steering (24), and Service Brakes, Hydraulic (23), with 11 crash and 9 fire complaints also logged; the data does not specify root causes. Although 1991’s volume is materially lower than the 483 and 815 complaints recorded in 1992 and 1993, it reflects a sharp increase from 1990’s 209 reports, signaling that owner-reported issues were accelerating. Because it carries fewer total complaints and the same recall count as the following year while predating the 1993 peak, the 1991 model is a relatively more favorable choice than 1992–1993 within this early run, though prospective buyers should still inspect powertrain and engine cooling systems closely.

5
Open recalls
NHTSA campaigns
67
Service bulletins
Manufacturer communications
11
ODI investigations
Office of Defects Investigation
316
Owner complaints
11 involved a crash · 9 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 316 complaints on record, top 8 components.

Power Train97
Engine & Engine Cooling54
Steering24
Service Brakes, Hydraulic23
Structure16
Electrical System13
Suspension11
Air Bags11

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 5 campaigns on record for this vehicle.

94E036000Suspension:Front:Shock AbsorberReported 25/11/1994

THE ARC WELDS ON THE SWAY BAR BRACKET, WHERE IT ATTACHES TO THE STRUT RESERVE TUBE, DID NOT FUSE PROPERLY. Remedy: MONROE DEALERS WILL REPLACE THE STRUT FREE OF CHARGE.

97V025000Vehicle Speed ControlReported 26/02/1997

VEHICLE DESCRIPTION: VEHICLES EQUIPPED WITH 3.8L ENGINES AND ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: ALASKA, COLORADO, IOWA, IDAHO, ILLINOIS, INDIANA, KANSAS, MASSACHUSETTS, MAINE, MICHIGAN… Remedy: DEALERS WILL ADD A BOOT TO THE SPEED CONTROL CABLE.

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 Sable. 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 1991 Sable take?

4.5 qt of 5W-30 API, per the factory manual.

Does the 1991 Sable have open recalls?

NHTSA lists 5 recall campaign(s) for this model year. Check your specific vehicle by VIN.