ChryslerConquest1989Overview/chrysler/conquest/1989/base/

1989 Chrysler Conquest

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

Transmission Automatic 4-spd

The 1989 Chrysler Conquest, paired with a 4-speed automatic transmission and returning EPA fuel economy figures of 16 city, 22 highway, and 18 combined mpg, serves as the subject of this reference overview. The engine's lubrication demands specify 4.5 quarts of oil with a filter, utilizing viscosity grades of 20W-30, 20W-40, or 10W-30 to keep the powertrain functioning properly. With zero recalls and only a single owner complaint logged under the "Unknown or Other" category, this model year occupies a remarkably stable point in the Conquest's reliability history, meaning researchers will find virtually no documented systemic faults to navigate.

Model year198919881987

Quick specs

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

Engine oil capacity4.5 qt w/ filterOEM · verified
Engine oil type20W-30 / 20W-40 / 10W-30OEM · verified
EPA fuel economy16/22/18 mpgEPA · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Ratings & economy EPA / vPIC

EPA city / highway / combined16 / 22 / 18 mpg
DrivetrainRear-Wheel Drive
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 4.5 qt w/ filter of 20W-30 / 20W-40 / 10W-30 engine oil, 85W-90 · GL-5 in the differential, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Differential Gear Oil85W-90 · GL-5
Differential Gear Oil Capacity2.8 Pints
Engine CoolantETHYLENE GLYCOL
Engine Oil20W-30 · 20W-40 · 10W-30 · 5W-30
Engine Oil Capacity4.5 qt w/ filter
Power Steering FluidMS-5931

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 5,000 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.

Every 5,000 miEngine Oil (drain & refill)
Every 7,500 miBrake Hydraulic System (inspect fluid level) · Power Steering System (inspect)
Every 10,000 miEngine Oil Filter (replace)
Every 15,000 miAxle Shaft Oil Seal (inspect) · Brake Line (inspect) · CV Joint Boot (inspect) · Engine Valves (inspect valve lash)
Every 30,000 miAccessory Drive Belt (inspect) · Brake Linings (inspect) · Differential (inspect fluid level) · Drive Axle Assembly (drain & refill) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill)
Every 50,000 miFuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect)

Owner how-tos

Condensed service procedures for routine maintenance. Procedures that require dealer diagnostic equipment are identified and summarized only.

Common procedures

Key fob — remote (RKE) programming programming new fob buttons Dealer tool OEM · verified
Tool requiredDRBIII scan tool (dealer / locksmith)
WhyTransmitter codes are written into the receiver in the passenger door module
Anti-theft (SKIS) — module initialization after immobilizer module replacement Dealer tool OEM · verified
When neededAfter Sentry Key Immobilizer Module (SKIM) replacement
Tool requiredDRBIII scan tool
Also requiredThe vehicle's four-digit PIN code

Reliability & federal safety record

Owner-reported issues, recalls, investigations and service bulletins on record with NHTSA — an unfiltered look at what owners actually experience.

Owner complaints about the 1989 Chrysler Conquest dominate in one area — the unknown or other, 1 of 1 reports (100%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the unknown or other pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

0
Open recalls
NHTSA campaigns
3
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
1
Owner complaints
0 involved a crash · 0 a fire

Owner complaints filed with NHTSA, by component

All 1 complaints on record, top 1 components.

Unknown Or Other1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

No recall campaigns on record with NHTSA for this vehicle as of the last data refresh.

Technical service bulletins NHTSA · verified

Showing 3 of 3 bulletins on record with NHTSA.

BulletinDateComponentSummary
2300800B2000-11-24SeatsSUBJECT REGARDING CHILD SEAT TETHER ANCHORS. *TT
2308002000-03-03SeatsSUBJECT REGARDING CHILD SEAT TETHER ANCHORS. *TT
2335991999-09-03SeatsINFORMATION ON CHILD SEAT TETHER ANCHORS. *TT

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 Conquest. 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 Conquest take?

4.5 qt w/ filter of ABOVE 30 degrees F 20W-30, 20W-40 SJ, ABOVE -10 degrees F 10W-30 SJ, BELOW 60 degrees F 5W-30 SJ, per the factory manual.

Does the 1989 Conquest have open recalls?

NHTSA lists 0 recall campaign(s) for this model year. Check your specific vehicle by VIN.

What gas mileage does the Conquest get?

EPA figures are 16 city / 22 highway / 18 combined mpg.