BuickRoadmaster1994Overview/buick/roadmaster/1994/base/

1994 Buick Roadmaster

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1994 Roadmaster.

Body PASSENGER CARTransmission Automatic 4-spd

The 1994 Buick Roadmaster is a passenger car equipped with a 4-speed automatic transmission and an engine requiring 4 quarts of 5W-30 API oil. This model delivers an EPA fuel economy rating of 15/23/18 mpg. Within the 1991-1999 model history, 1994 represents the peak of owner complaints with 134 reports—primarily centered on the electrical system—and five recalls, contrasting sharply with the single complaint recorded for the 1999 model.

Model year19961995199419931992

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 economy15/23/18 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 12737090. Note the factory fuel filter and front wiper blades are now discontinued — plan on a superseded or quality aftermarket equivalent, which the part pages below list where known.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 filter19259030
Fuel filter25121978 discontinued
Spark plug19301808
Front wiper blades25689175 discontinued
Thermostat12555290 alt 12551507

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length215.7 in
Overall width78 in
Overall height55.9 in
Wheelbase116.1 in
Curb weight4191 lb
Track (front / rear)61.8 / 60.6 in
Weight distribution (front / rear)55/45

Ratings & economy EPA / vPIC

EPA city / highway / combined15 / 23 / 18 mpg
DrivetrainRear-Wheel Drive
Passenger volume114 cu ft
Cargo volume21 cu ft
Recommended fuelPremium Gasoline

Performance & power Independent road tests

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

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

7.8 sec0–60 mph (tested)quickest 7.80 sec — 1994 Limited Sedan
YearTrim / engine0–60¼ mileHPDrivetrain
1994Limited Sedan 5.7L V87.80 sec16.00 sec260 hpRWD
1995Limited Sedan 5.7L V86.70 sec15.00 sec260 hpRWD
1991Limited Sedan 5.7L V89.30 sec17.20 sec180 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, 80W-90 · GL-5 in the differential, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Differential Gear Oil80W-90 · GL-5
Differential Gear Oil Capacity4.3 qt
Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity4 qt
Power Steering FluidUSE 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; 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 miEngine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 7,500 miBody Latches, Locks & Hinges (inspect) · Differential (inspect fluid level) · Drive Axle Assembly (drain & refill) · Engine Oil (drain & refill) · Parking Brake Cable (lubricate) · Shift Linkage (inspect)
Every 15,000 miEngine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 30,000 miEngine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Spark Plug Wires (inspect)
Every 100,000 miSpark Plugs (replace) · Transmission 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 1994 Buick Roadmaster represents the peak of consumer complaints within this generation, recording 134 complaints—more than double the 1993 figure and nearly double the 1995 figure—making it the highest-complaint year in the dataset. This spike coincides with the highest recall count for the generation (5 recalls, tied with 1995), suggesting that GM was addressing widespread safety issues during this model year. The top complaint categories are notable: electrical system problems (18), service brake hydraulic failures (17), and engine/cooling issues (13) indicate recurring safety-critical defects, while 17 crash-related complaints and 4 fire-related complaints raise additional concerns. The complaint trend shows a sharp increase from 1991 to 1992, a brief dip in 1993, then the 1994 peak before declining in subsequent years—suggesting the 1994 model may have suffered from manufacturing defects or design issues that were partially addressed in later production. The 18 TSBs issued for 1994 also represent a substantial jump from earlier years, reflecting dealer-level service attention. Given this data, the 1994 model year is not the best choice within this generation; the 1995 or 1996 models, with lower complaint counts and the same recall coverage, would likely offer better reliability.

5
Open recalls
NHTSA campaigns
18
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
134
Owner complaints
17 involved a crash · 4 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 134 complaints on record, top 8 components.

Electrical System18
Service Brakes, Hydraulic17
Engine & Engine Cooling13
Vehicle Speed Control11
Suspension10
Air Bags10
Structure9
Power Train8

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 5 campaigns on record for this vehicle.

94V076000Wheels:Lugs/Nuts/Bolts/StudsReported 16/04/1994

PAINT ON THE WHEEL MOUNTING SURFACES CAN ACT AS A SHIM BETWEEN THE WHEEL AND THE ROTOR/DRUM. AS THE VEHICLE IS DRIVEN, THE WHEEL IMBEDS INTO THE PAINT, LOOSENING THE LUG NUT AND CAUSING A LOSS OF CLAMP LOAD. Remedy: DEALERS WILL CLEAN THE WHEEL MOUNTING SURFACES FOR ALL FOUR WHEELS. ALSO, THE WHEEL STUDS WILL BE INSPECTED FOR DAMAGE AND WILL BE REPLACED AS NECESSARY.

96V019000Suspension:Front:Control Arm:Lower Ball JointReported 30/01/1996

DEFECTIVE LOWER CONTROL ARM BALL JOINT ATTACHMENT NUTS WERE NOT PROPERLY TORQUED AND CAN LOOSEN. Remedy: DEALERS WILL INSPECT BOTH FRONT LOWER CONTROL ARM BALL JOINT ATTACHMENT NUTS FOR PROPER TORQUE. IF THE BALL JOINT HAS LOOSENED FROM THE KNUCKLE, BOTH THE BALL JOINT AND THE…

Technical service bulletins NHTSA · verified

Showing 5 of 18 bulletins on record with NHTSA.

BulletinDateComponentSummary
PIC4696E2019-11-22EquipmentThis Preliminary Information communication provides information to the technician on how…
PIC4696D2019-09-05EquipmentThis Preliminary Information communication provides information to the technician on how…
PIC4696C2018-05-31EquipmentThis Preliminary Information communication provides information to the technician on how…
1300890092013-09-01Engine And Engine CoolingExpanded Availability for Remanufacture and Return (R&R) Electronic Control Modules
9909410042000-01-01Air BagsINFORMATION REGARDING SWITCHES TO TURN OFF AND ON FRONTAL AIR BAGS FOR PASSENGER CARS AND…

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 Roadmaster. 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 1994 Roadmaster take?

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

Does the 1994 Roadmaster have open recalls?

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

What gas mileage does the Roadmaster get?

EPA figures are 15 city / 23 highway / 18 combined mpg.