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1991 Cadillac DeVille

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

Body PASSENGER CARTransmission Automatic 4-spd

The 1991 Cadillac DeVille is a passenger car pairing an automatic 4-speed transmission with an engine maintained by a 4-quart fill of 5W-30 API oil, delivering EPA fuel economy of 15 city and 24 highway mpg for an 18 mpg combined average. Reliability data paints this year as a relatively stable chapter in the model's 1990-2005 history, as its 100 total owner complaints—primarily focused on hydraulic service brakes alongside a single recall—place it near the bottom of the spectrum just above 1990's low of 94. Consequently, the 1991 model stands as a comparatively sound entry in the lineage, well clear of the peak problem volumes that would define later years like 1997.

Model year2005 2004 2003 2002 2001 2000 1999 1998 1991

Quick specs

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

Engine oil capacity4 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 Note the factory front wiper blades and serpentine belt are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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

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 DeVille of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

6.6–11.6 sec0–60 mph (tested)quickest 6.60 sec — 2000 DTS Sedan

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1994	Concours Sedan 4.6L V8	7.80 sec	15.80 sec	270 hp	FWD
1994	Sedan 4.9L V8	8.30 sec	16.50 sec	200 hp	FWD
1995	Concours Sedan 4.6L V8	6.90 sec	15.20 sec	300 hp	FWD
1996	Concours Sedan 4.6L V8	7.20 sec	15.40 sec	300 hp	FWD
1997	Concours Sedan 4.6L V8	6.60 sec	14.90 sec	300 hp	FWD
1998	Concours Sedan 4.6L V8	6.90 sec	15.10 sec	300 hp	FWD
2000	DTS Sedan 4.6L V8	6.60 sec	15.00 sec	300 hp	FWD
2000	DTS Sedan 4.6L V8	6.80 sec	15.10 sec	300 hp	FWD

Service quick specs OEM factory data

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

This engine holds 4 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	4 qt
Engine Oil	5W-30 · API
Engine Oil Capacity	4.0 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 model sits near the bottom of this generation’s federal-record arc, posting 100 complaints, 1 recall, 4 investigations, and 8 TSBs—modestly higher than 1990’s 94 complaints and 5 TSBs, but a fraction of the 169-to-306 complaint range and the dozens-to-hundreds of TSBs seen from 1992 onward. The broader trajectory shows a steady escalation across the generation, with complaints more than tripling to 306 by 1997 and TSBs ballooning from single digits to 548 by 2005, positioning 1991 as one of the lowest-filing years before that climb. For 1991, the leading complaint category is “Service Brakes, Hydraulic” at 29 reports, with “Engine & Engine Cooling” at 15, “Fuel System, Gasoline” at 8, and “Electrical System” at 8, though the data does not specify underlying causes; the year also records 9 crash and 11 fire complaints. Because its recall count remains at the generational low of 1 and overall filings are minimal compared with the steep increases that follow, 1991 stands out as a relatively benign entry in this lineup. Buyers seeking the most federally quiet year in this generation should view 1991 as a sounder prospect than later models carrying far higher complaint and TSB volumes.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

100

Owner complaints

9 involved a crash · 11 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’90’91’92 ’93 ’94 ’95 ’96 ’97 ’98 ’99 ’00 ’01 ’02 ’03 ’04 ’05

Owner complaints filed with NHTSA, by component

All 100 complaints on record, top 8 components.

Service Brakes, Hydraulic29

Engine & Engine Cooling15

Fuel System, Gasoline8

Electrical System8

Power Train6

Vehicle Speed Control6

Air Bags4

Steering3

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

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 8 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
990941004	2000-01-01	Air Bags	INFORMATION REGARDING SWITCHES TO TURN OFF AND ON FRONTAL AIR BAGS FOR PASSENGER CARS AND…
990940004	2000-01-01	Seats	GENERAL MOTORS BEGAN PROVIDING CHILD RESTRAIN SEAT TOP TETHER HARDWARE PACKAGES TO…
990866002A	2000-01-01	Latches/Locks/Linkages	THIS BULLETIN INFORMS DEALERSHIPS ABOUT THE TRAP RESISTANT REAR COMPARTMENT (TRUNK) KIT…
577106A	1997-02-01	Power Train	COLD START RATTLE NOISE (DIAGNOSIS/SERVICE PROCEDURE). *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 DeVille. 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 4 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 DeVille take?

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

Does the 1991 DeVille have open recalls?

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

What gas mileage does the DeVille get?

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