JeepGrand Wagoneer1986Overview/jeep/grand-wagoneer/1986/base/

1986 Jeep Grand Wagoneer

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1986 Grand Wagoneer.

The 1986 Jeep Grand Wagoneer is maintained with a 4-quart engine oil capacity including filter, utilizing 20W-40, 20W-50, or 10W-30 API viscosity. This model year recorded two recalls and four total owner complaints across the electrical system, structure, power train, and engine and engine cooling. Compared to the model's recorded history from 1990 to 2026, where annual complaints fluctuated between a low of one in 1991 and a high of 55 in 2022, the 1986 model year demonstrates a minimal complaint volume.

Model year202520242023202219931991199019891986

Quick specs

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

Engine oil capacity4 qt w/ filterOEM · verified
Engine oil type20W-40 / 20W-50 / 10W-30 APIOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length186.6 in
Overall width74.8 in
Overall height66.5 in
Wheelbase108.7 in
Curb weight4262 lb

Performance & power Independent road tests

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

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

13.3 sec0–60 mph (tested)quickest 13.30 sec — 1990 5-door
YearTrim / engine0–60¼ mileHPDrivetrain
19905-door 5.9L V813.30 sec19.20 sec144 hp4x4

Service quick specs OEM factory data

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

This engine holds 4 qt w/ filter of 20W-40 / 20W-50 / 10W-30 API engine oil, Front: 75W- in the differential.

Lubricants & capacities

Differential Gear OilFront: 75W-
Differential Gear Oil Capacity4.8 Pints
Engine CoolantETHYLENE GLYCOL
Engine Oil20W-40 · 20W-50 · API · 10W-30 · 10W-40 · 5W-30
Engine Oil Capacity4 qt w/ filter
Engine Oil20W-40 · 20W-50 · API · 10W-30 · 10W-40 · 5W-30
Engine Oil Capacity5 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 7,500 mi; coolant every 22,500 mi. The big-interval services (every 22,500 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.

Every 7,500 miEngine Oil (drain & refill) · Engine Oil Filter (replace)
Every 22,500 miEngine Coolant System (drain, flush & refill)
Every 30,000 miAir Cleaner Manifold Heat Control Actuator (inspect) · Bands (adjust) · Body Fasteners (torque) · Body Latches, Locks & Hinges (inspect) · Brake System (inspect) · Choke System (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.

The provided year-by-year federal record contains no 1986 entry, so the target year cannot be placed directly on the timeline; the closest chronological comparison points are the earliest recorded years, 1990–1992, which show one to two complaints and zero recalls each. The target-year summary indicates only four top complaint categories with one report apiece, zero crash complaints, and one fire complaint—roughly comparable in volume to those low-activity early years. Across the entire record, the trend is minimal early reporting, a pronounced 1993 spike (nine complaints, seven recalls, thirty-four TSBs), modest late-1990s activity, and then very high modern-era counts from 2022 onward. Because 1986 is absent from that arc, the data neither singles it out as a high-risk year nor supplies enough contemporaneous detail to confirm it is superior to later low-reporting years. Bottom line: the federal record does not flag a systemic issue for a 1986 Grand Wagoneer, but since the year itself is not captured, buy only after a rigorous mechanical inspection rather than relying on this federal snapshot.

2
Open recalls
NHTSA campaigns
2
Service bulletins
Manufacturer communications
1
ODI investigations
Office of Defects Investigation
4
Owner complaints
0 involved a crash · 1 a fire
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 4 complaints on record, top 4 components.

Engine & Engine Cooling,Power Train,Electrical System,Structure1
Electrical System1
Seat Belts1
Equipment1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

85V140000Service Brakes, Hydraulic:FluidReported 29/10/1985

CERTAIN OF THESE VEHICLES MAY HAVE BEEN BUILT WITH CONTAMINATED BRAKE FLUID. CONSEQUENCE OF DEFECT: THIS CAN ADVERSELY AFFECT THE ENTIRE BRAKING SYSTEM WHERE COMPLETE BRAKE FAILURE CAN OCCUR WHICH COULD CAUSE AN… Remedy: FLUSH AND REFILL BRAKE SYSTEM WITH NEW HYDRAULIC BRAKE FLUID.

87V178000Visibility:Glass, Side/RearReported 23/11/1987

THE KEY OPERATED TAILGATE WINDOW WILL CONTINUE TO CLOSE IF THE SPRING LOADED KEY DOES NOT RETURN TO OFF POSITION WHEN RELEASED. Remedy: OWNERS SHOULD NOT LEAVE KEY IN TAILGATE OF UNATTENDED VEHICLE. REPAIR MECHANISM TO ASSURE PROPER KEY RETURN OPERATION.

Technical service bulletins NHTSA · verified

Showing 2 of 2 bulletins on record with NHTSA.

BulletinDateComponentSummary
RCL/6231995-05-01Electrical SystemUNKNOWN
RCL/6221995-05-01Electrical SystemUNKNOWN

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 Grand Wagoneer. 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 1986 Grand Wagoneer take?

4 qt w/ filter of ABOVE 30 degrees F: 20W-40 OR 20W-50 API, ABOVE 0 degrees F: 10W-30 OR 10W-40 API, BELOW 60 degrees F: 5W-30 API, per the factory manual.

Does the 1986 Grand Wagoneer have open recalls?

NHTSA lists 2 recall campaign(s) for this model year. Check your specific vehicle by VIN.