BuickRegal1989Overview/buick/regal/1989/base/

1989 Buick Regal

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1989 Regal.

The 1989 Buick Regal is characterized by engine maintenance requirements of 4 qt using 5W-30 API viscosity, defining its mechanical specifications alongside specific reliability data. Ownership records document 124 total owner complaints and 8 recalls, identifying the Service Brakes, Hydraulic system as the top complaint area. While the model complaint history spans 1990-2020 with a peak of 325 complaints in 1998 and a low of 1 in 2008, the 1989 figures establish a baseline preceding this recorded period. This placement indicates a distinct volume of reported issues separate from the later fluctuations in the nameplate's reliability history.

Model year201820172016201520142013201220111989

Quick specs

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

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

Fitment & sizes

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

From the factory this vehicle uses OE oil filter 12737090. Note the factory fuel filter and serpentine belt are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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 filter12737090
Engine air filter19166103
Fuel filter25171792 discontinued
Spark plug19354418
Front wiper blades10093142
Serpentine belt88986811 discontinued
Thermostat19435095 alt 10226107

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length192.1 in
Overall width72.4 in
Overall height53.1 in
Wheelbase107.5 in
Curb weight3023 lb
Track (front / rear)59.8 / 60.6 in
Weight distribution (front / rear)65/35

Performance & power Independent road tests

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

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

4.9–11.2 sec0–60 mph (tested)quickest 4.90 sec — 1986 Grand National Coupe
YearTrim / engine0–60¼ mileHPDrivetrain
1988Custom Coupe (Grand Touring Pkg) 2.8L V611.20 sec18.20 sec125 hpFWD
1987Grand National Coupe 3.8L Turbo V65.40 sec14.20 sec245 hpRWD
1987Grand National Coupe 3.8L Turbo V66.00 sec14.70 sec245 hpRWD
1987Grand National Coupe 3.8L Turbo V66.10 sec14.70 sec245 hpRWD
1991Gran Sport Sedan 3.8L V68.60 sec16.50 sec170 hpFWD
1986Grand National Coupe 3.8L Turbo V64.90 sec13.90 sec235 hpRWD
1986T-Type Coupe 3.8L Turbo V65.85 sec14.30 sec235 hpRWD
1985Grand National Coupe 3.8L Turbo V67.50 sec15.70 sec200 hpRWD

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 FluidDOT 3
Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity4 qt
Engine Oil5W-30 · API
Engine Oil Capacity4 qt
Engine Oil5W-30 · API
Engine Oil Capacity4.0 qt

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 miEngine Oil Filter (replace) · Throttle Body (torque) · Tire & Wheel Assembly (rotate)
Every 7,500 miAccessory Drive Belt (inspect) · Axle Shaft Oil Seal (inspect) · Body Latches, Locks & Hinges (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Engine Oil (drain & refill)
Every 15,000 miEngine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 30,000 miEngine Air Filter Element (replace) · Engine Breather Filter (replace) · Engine Coolant System (drain, flush & refill) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect)
Every 100,000 miTransmission Fluid & Filter (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 1989 Buick Regal does not appear directly in the year-by-year federal record, which begins with model year 1990 (103 complaints, 9 recalls, 11 investigations, 10 TSBs), but its own filing shows a complaint profile heavily weighted toward service brakes (52) followed by structure (14), electrical system (12), and engine cooling (7), with 9 crash and 3 fire complaints logged against it. Placed in the context of the surrounding arc, 1989 sits at the very front of a generation whose complaint volume rises sharply—103 in 1990 to 249 in 1991—and carries a heavy early regulatory footprint (9 recalls and 11 investigations in 1990, with investigations holding at 11 into 1991), indicating NHTSA flagged safety issues early in this run. The 1989's concentration of brake-related complaints aligns with that early-investigation pattern, though the data does not specify the root cause behind the 52 brake filings. TSBs climb steadily across the 1990s (from 10 in 1990 to 109 by 1999) and then surge dramatically later, suggesting chronic service bulletins rather than isolated defects and implying a buyer should expect ongoing maintenance attention. Concrete takeaway: a 1989 Regal is a reasonable candidate from the low-mileage end of the arc, but only after a pre-purchase brake inspection and a thorough VIN-based recall verification, as it shares the early-generation regulatory scrutiny that defined this model line.

8
Open recalls
NHTSA campaigns
4
Service bulletins
Manufacturer communications
11
ODI investigations
Office of Defects Investigation
124
Owner complaints
9 involved a crash · 3 a fire

Owner complaints filed with NHTSA, by component

All 124 complaints on record, top 8 components.

Service Brakes, Hydraulic52
Structure14
Electrical System12
Engine & Engine Cooling7
Unknown Or Other3
Parking Brake3
Steering3
Power Train3

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 8 campaigns on record for this vehicle.

06E043000Fuel System, GasolineReported 19/05/2006

CERTAIN REPLACEMENT FUEL FILTERS, FRAM BRAND NAME P/N G3727, WITH DATE CODES X52911 THROUGH X60801 SEQUENTIALLY OR X600141 AND A MEXICO COUNTRY OR ORIGIN MARKING ON THE FUEL FILTER HOUSING MANUFACTURED FROM OCTOBER 18… Remedy: HONEYWELL WILL NOTIFY OWNERS AND REPLACE THE FUEL FILTERS FREE OF CHARGE. THE RECALL BEGAN ON OCTOBER 18, 2006. OWNERS MAY CONTACT FRAM CUSTOMER SERVICE AT 1-800-890-2075 (OPTION…

00V189000StructureReported 11/07/2000

VEHICLE DESCRIPTION: PASSENGER VEHICLES ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE STATES OF CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, MAINE, MARYLAND, MASSACHUSETTS, MICHIGAN, MINNESOTA, MISSOURI, NEW… Remedy: DEALERS WILL REPLACE THE FRONT AND REAR FRAME/CRADLE BOLTS AND RETAINERS.

Technical service bulletins NHTSA · verified

Showing 4 of 4 bulletins on record with NHTSA.

BulletinDateComponentSummary
9903090041999-10-01SuspensionCUSTOMERS MAY COMPLAIN OF GRINDING / SCRAPING / GROANING NOISE FROM REAR SUSPENSION. *TT
1334051995-01-01SuspensionREAR STRUT RELATED THUMPING/SQUEAKING NOISE. *TW
435012A1995-01-01Service Brakes, HydraulicABS WARNING LIGHT IS ON. *TW
4350121994-12-01Service Brakes, HydraulicABS WIRE HARNESS FOR THE RIGHT FRONT WHEEL MAY RUB ON THE BRAKE LINE CAUSING THE ABS…

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 Regal. 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 1989 Regal take?

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

Does the 1989 Regal have open recalls?

NHTSA lists 8 recall campaign(s) for this model year. Check your specific vehicle by VIN.