OldsmobileSilhouette1990Overview/oldsmobile/silhouette/1990/base/

1990 Oldsmobile Silhouette

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1990 Silhouette.

Transmission Automatic 3-spd

The 1990 Oldsmobile Silhouette pairs a 3-speed automatic transmission with an engine requiring 4 quarts of 5W-30 API oil, returning EPA figures of 16 city, 21 highway, and 18 combined mpg. With 63 owner complaints on record and five recalls — the most flagged issue being seat belts — this inaugural model year sits on the lower end of the Silhouette's 1990–2004 complaint history, well below the 1998 peak of 190 complaints. That relatively modest complaint volume, coupled with the fact that complaints steadily declined toward just 11 by the final 2004 model year, suggests the first-year Silhouette avoided the worst reliability troubles that would later plague the lineup.

Model year200420032002200120001999199819971990

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 economy16/21/18 mpgEPA · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 3-spd

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 21 / 18 mpg
DrivetrainFront-Wheel Drive
Recommended fuelRegular Gasoline

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.

Lubricants & capacities

Engine CoolantETHYLENE GLYCOL
Engine Oil5W-30 · API
Engine Oil Capacity4 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; spark plugs every 60,000 mi; coolant every 7,500 mi. The big-interval services (every 7,500 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 miBody Latches, Locks & Hinges (lubricate) · Brake System (inspect) · Engine Coolant System (leak inspection) · Engine Oil (drain & refill) · Parking Brake Cable (lubricate) · Shift Linkage (inspect)
Every 15,000 miCabin Air Filter (replace) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 30,000 miEGR System (inspect) · Engine Air Filter Element (replace) · Engine Breather Filter (replace) · Fuel Filter (replace) · Fuel Line (inspect) · Fuel Tank (inspect)
Every 60,000 miAccessory Drive Belt (inspect) · Ignition Timing (inspect) · PCV System (inspect) · Spark Plug Wires (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.

Across the Silhouette's generation, federal data reveals a volatile arc where initial complaint and investigation figures drop from 1990 into 1991 and through the mid-1990s, before spiking dramatically in 1997 and 1998. The 1990 model sits at the peak of this early arc, recording the generation's highest number of investigations (9) alongside 63 complaints and 5 recalls, which implies significant early-production teething issues. Chief among these are 17 seat belt complaints, followed by steering (10) and structure (7), though the data does not specify the root causes for these failures. With only one crash and one fire complaint on record for this year, the primary concern is component reliability rather than catastrophic safety hazards. Given its debut-year status with elevated recalls and the highest investigation count, the 1990 Silhouette is a risky purchase; you should only consider buying it if there is documented proof that all 5 recalls and 4 technical service bulletins have been fully resolved.

5
Open recalls
NHTSA campaigns
4
Service bulletins
Manufacturer communications
9
ODI investigations
Office of Defects Investigation
63
Owner complaints
1 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

Owner complaints filed with NHTSA, by component

All 63 complaints on record, top 8 components.

Seat Belts17
Steering10
Structure7
Service Brakes, Hydraulic4
Engine & Engine Cooling3
Fuel System, Gasoline3
Visibility3
Vehicle Speed Control2

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 5 campaigns on record for this vehicle.

91V046000Seat Belts:Front:AnchorageReported 15/03/1991

A RIGHT HAND SEAT/SHOULDER BELT RETRACTOR MAY HAVE BEEN INSTALLED IN THE SECOND ROW LEFT HAND SEAT POSITION (DIRECTLY BEHIND DRIVER). Remedy: REPLACE SHOULDER BELT ASSEMBLY.

97V058000StructureReported 08/04/1997

VEHICLE DESCRIPTION: PASSENGER VEHICLES AND MINI VANS ORIGINALLY SOLD OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: CONNECTICUT, ILLINOIS, INDIANA, MAINE, MASSACHUSETTS, MICHIGAN, NEW HAMPSHIRE, NEW JERSEY, NEW YORK… Remedy: DEALERS WILL REPLACE THE REAR CRADLE BOLTS AND RETAINERS.

Technical service bulletins NHTSA · verified

Showing 4 of 4 bulletins on record with NHTSA.

BulletinDateComponentSummary
018802004-01-01Power TrainNO TCC APPLY, MALFUNCTION INDICATOR LAMP (MIL) ON, TCC SURGE, POSSIBLE P0740, P1870, OR…
876002A1998-07-01Engine And Engine CoolingSOME V6 ENGINES MAY, ON A VERY INFREQUENT BASIS, HAVE AN OIL ODOR CONDITION THAT IS…
4363031995-01-01Fuel System, GasolineFUEL TANK THUD/CLUNK. *TW
4310511994-12-01StructureSLIDING DOOR RATTLES. *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 Silhouette. 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 1990 Silhouette take?

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

Does the 1990 Silhouette have open recalls?

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

What gas mileage does the Silhouette get?

EPA figures are 16 city / 21 highway / 18 combined mpg.