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1991 Cadillac Fleetwood

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

Transmission Automatic 4-spd

The 1991 Cadillac Fleetwood operates with a 4-speed automatic transmission to deliver an EPA fuel economy rating of 15/24/18 mpg and requires 5 quarts of 5W-30 API oil. Documented owner feedback for this specific model year includes 17 total complaints and 3 recalls, with service brakes identified as the top hydraulic complaint area. Within the broader 1990-1998 model history, the 1991 edition records fewer issues than the peak complaint year of 1993, which logged 46 incidents, though it does not match the lowest count of 4 complaints seen in 1998. This data places the 1991 model early in the lineage with a moderate complaint volume, suggesting it precedes the significant reliability spike characterized by the 1993 model year.

Model year1996 1995 1994 1993 1992 1991 1989 1988 1987

Quick specs

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

Engine oil capacity5 qtOEM · verified

Engine oil type5W-30 APIOEM · verified

EPA fuel economy15/24/18 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 12731179. Note the factory front wiper blades and serpentine belt are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known. 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.

OE service part numbers OEM · verified

Engine oil filter	12731179
Engine air filter	19259030
Fuel filter	25121468
Spark plug	19300875
Front wiper blades	25689175 discontinued
Serpentine belt	19355279 discontinued
Thermostat	03539588 alt 03522676

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length	202.8 in
Overall width	73.2 in
Overall height	54.7 in
Wheelbase	111 in
Curb weight	3545 lb
Weight distribution (front / rear)	64/36

Ratings & economy EPA / vPIC

EPA city / highway / combined	15 / 24 / 18 mpg
Drivetrain	Front-Wheel Drive
Passenger volume	113 cu ft
Cargo volume	18 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 Fleetwood of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

9.1–11.7 sec0–60 mph (tested)quickest 9.10 sec — 1989 60 Special Sedan

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1989	60 Special Sedan 4.5L V8	9.10 sec	17.00 sec	155 hp	FWD
1985	Sedan 4.1L V8	11.70 sec	18.20 sec	135 hp	FWD

Service quick specs OEM factory data

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

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

Lubricants & capacities

Brake Fluid	DOT 3
Engine Coolant	ETHYLENE GLYCOL
Engine Oil	5W-30 · API
Engine Oil Capacity	5 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	5.0 qt
Power Steering Fluid	USE GM PART NO. 1052884 OR EQUIVALENT

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter at 7,500 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 mi	Engine Oil Filter (replace) · Throttle Body (torque) · Tire & Wheel Assembly (rotate)
Every 7,500 mi	Body Latches, Locks & Hinges (inspect) · Engine Oil (drain & refill) · Parking Brake Cable (lubricate) · Shift Linkage (inspect) · Steering Linkage (inspect) · Suspension System (inspect)
Every 15,000 mi	Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 30,000 mi	Accessory Drive Belt (inspect) · EGR System (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Engine Coolant System (drain, flush & refill) · Fuel Line (inspect)

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 Cadillac Fleetwood posts a relatively moderate federal record with 17 complaints, 3 recalls, 2 investigations, and 5 TSBs, sitting in the early portion of a generation whose complaint volume climbs from this baseline to a peak of 46 in 1993 before tapering. Within the 1990-1996 arc, 1991 marks the first inflection point: TSB activity jumps sharply from just 1 in 1990 to 5, signaling that General Motors was beginning to address emerging technical issues, and the 2 open investigations tie for the highest level seen in the dataset. The top complaint cluster is led by hydraulic brake concerns (4 of 17 filings), accompanied by 2 crash-related and 1 fire-related complaint, a safety profile that warrants particular inspection of the braking system on any candidate vehicle. Recall count (3) is on the higher side for this generation, exceeded only by 1994's 5 and matched by 1993 and 1995, meaning a pre-purchase verification that all 1991 recalls were completed is essential. Considering that the 1992 model year actually shows the cleanest record of the generation (8 complaints, 2 recalls) and 1991 precedes the 1993 complaint surge, this is a reasonable but not standout year to buy, provided the brake-system service history is thoroughly documented and recall remediation is confirmed.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

2 involved a crash · 1 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

’90’91’92 ’93 ’94 ’95 ’96 ’98

Owner complaints filed with NHTSA, by component

All 17 complaints on record, top 8 components.

Service Brakes, Hydraulic4

Electrical System2

Vehicle Speed Control1

Tires1

Service Brakes, Hydraulic,Engine & Engine Cooling,Power Train,Unknown Or Other1

Steering,Parking Brake,Vehicle Speed Control1

Steering1

Suspension1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 3 campaigns on record for this vehicle.

07E088000EquipmentReported 24/10/2007

CERTAIN HONEYWELL FRAM RACING BRAND HP4 AND HP8 OIL FILTERS THAT WERE MANUFACTURED FROM MAY 25, 2006, THROUGH SEPTEMBER 14, 2007, AND SOLD FOR USE AS REPLACEMENT EQUIPMENT FOR VEHICLES LIST ABOVE. THE AFFECTED FILTERS… Remedy: HONEYWELL WILL REPLACE THE AFFECTED OIL FILTERS FREE OF CHARGE. THE RECALL BEGAN DURING NOVEMBER 2007. OWNERS CAN CONTACT FRAM CUSTOMER SERVICE TOLL-FREE AT 1-800-890-2075.

94V199000Power Train:Axle AssemblyReported 13/10/1994

THE UPPER TRANSAXLE OIL COOLER HOSE CAN PULL OUT OF THE CRIMPED COUPLING AT THE TRANSAXLE END OF THE LINE ASSEMBLY. Remedy: DEALERS WILL INSTALL A NEW UPPER TRANSAXLE OIL COOLER LINE TO THE TRANSAXLE.

Technical service bulletins NHTSA · verified

Showing 5 of 5 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
130089009	2013-09-01	Engine And Engine Cooling	Expanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
020730024A	2005-08-01	Power Train	DIAGNOSIS OF CRACKED OR BROKEN TRANSMISSION CASE. *TT 2006 AND PRIOR CARS AND LIGHT DUTY…
577106A	1997-02-01	Power Train	COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *TW
577106A	1996-12-01	Power Train	COLD START RATTLE NOISE. *TW
577106	1995-02-01	Power Train	COLD START RATTLE NOISE. *TW

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 Fleetwood. 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.

Vehicles taking 5 qt Engine oil filter 12731179 Engine air filter 19259030 Fuel filter 25121468 Spark plug 19300875

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

How much oil does the 1991 Fleetwood take?

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

Does the 1991 Fleetwood have open recalls?

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

What gas mileage does the Fleetwood get?

EPA figures are 15 city / 24 highway / 18 combined mpg.