Toyota4runner1991V6/toyota/4runner/1991/v6/

1991 Toyota 4runner — V6

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1991 4runner V6.

Body SUVEngine V6Transmission Automatic 4-spd

The 1991 Toyota 4runner is a V6-powered SUV utilizing a 4-speed automatic transmission and achieving an EPA-rated 15/19/17 mpg. This configuration requires 4.4 quarts of 10W-30 or 5W-30 API oil. With 50 total owner complaints—focused primarily on engine and engine cooling—and two recalls, the 1991 model year sits well below the series high of 707 complaints recorded in 2003 across the 1990-2026 history.

Model year200420032000199919981995199419931991

Quick specs

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

Engine oil capacity4.4 qtOEM · verified
Engine oil type10W-30 / 5W-30 APIOEM · verified
EPA fuel economy15/19/17 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 90915YZZD1. 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 filter90915YZZD1
Engine air filter178013502083 alt 178017002083
Fuel filter2330039035 alt 2330065020
Spark plug9091901176
Front wiper blades85212YZZ09TM
Serpentine belt909160219683 alt 909160237883
Thermostat9091603079 alt 9091603078

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic 4-spd

Ratings & economy EPA / vPIC

EPA city / highway / combined15 / 19 / 17 mpg
DrivetrainRear-Wheel Drive
Recommended fuelRegular Gasoline

Performance & power Independent road tests

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

Independent published road-test results.

15.7 sec0–60 mph (tested)quickest 15.70 sec — 1991 SR5
150 hpHorsepower (as tested)
180 lb-ftTorque (as tested)
YearTrim / engine0–60¼ mileHPDrivetrain
1991SR5 3.0L V615.70 sec20.70 sec150 hp4x4

Service quick specs OEM factory data

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

This engine holds 4.4 qt of 10W-30 / 5W-30 API engine oil, 75W-90 · GL-5 in the differential, DOT 3 brake fluid.

Lubricants & capacities

Brake FluidDOT 3
Differential Gear Oil75W-90 · GL-5
Differential Gear Oil Capacity3.5 Pints
Engine Oil10W-30 · API · 5W-30
Engine Oil Capacity4.4 qt
Engine Oil10W-30 · API · 5W-30
Engine Oil Capacity4.5 qt
Power Steering FluidATF

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 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 miUniversal Vehicle Operation (inspect idle speed)
Every 7,500 miAccessory Drive Belt (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miAxle Shaft Oil Seal (inspect) · Body Fasteners (torque) · Body Latches, Locks & Hinges (inspect) · Brake Drum Assembly (inspect) · Brake Line (inspect) · Brake Linings (inspect)
At 30,000 miAccessory Drive Belt (inspect) · Universal Vehicle Operation (inspect idle speed)
Every 30,000 miEngine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Engine Valves (inspect valve lash) · Exhaust System (Complete) (inspect) · Fuel Line (inspect) · Fuel System (inspect)
At 45,000 miEngine Coolant System (drain, flush & refill)
Every 60,000 miFuel Evaporative Canister (inspect) · Fuel Tank Filler Cap O-Ring (inspect)
At 80,000 miOxygen Sensor (inspect)
At 120,000 miAccessory Drive Belt (inspect)

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 1991 Toyota 4runner shows a notable improvement in reliability over the 1990 model, with complaints dropping from 85 to 50. While complaints rose again to 68 in 1992, the 1991 model represents a low point for reported issues during the early 1990s. Across the broader record, this era is characterized by relative stability before complaints surged starting in 1995 and peaked in 2003. For 1991, the primary complaint areas were Engine & Engine Cooling with 19 reports and Service Brakes, Hydraulic with 8, though the data does not specify the root causes. Safety metrics remain low with only 2 recalls and 3 crash complaints, consistent with the trend of the early generation. Given its position as the lowest-complaint year in its immediate window and its distance from later generation-wide spikes, 1991 is a good year to buy.

2
Open recalls
NHTSA campaigns
31
Service bulletins
Manufacturer communications
4
ODI investigations
Office of Defects Investigation
50
Owner complaints
3 involved a crash · 0 a fire

Owner complaints filed with NHTSA, by component

All 50 complaints on record, top 8 components.

Engine & Engine Cooling19
Service Brakes, Hydraulic8
Steering5
Power Train5
Tires4
Wheels2
Vehicle Speed Control,Service Brakes1
Structure1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 2 campaigns on record for this vehicle.

05V389000Steering:Linkages:Rod:Relay:ConnectingReported 06/09/2005

ON CERTAIN PICKUP TRUCKS AND SPORT UTILITY VEHICLES, IF THE STEERING WHEEL IS REPEATEDLY TURNED UNDER CERTAIN CONDITIONS WHERE HIGH STEERING EFFORT AND POWER ASSIST ARE REQUIRED, FOR INSTANCE, WHEN FULLY TURNING THE… Remedy: DEALERS WILL REPLACE THE STEERING RELAY ROD. THE RECALL BEGAN OCTOBER 5, 2005. OWNERS MAY CONTACT TOYOTA AT 1-800-331-4331.

06E049000Exterior LightingReported 24/05/2006

CERTAIN CK MOTORSPORTS COMBINATION HEADLIGHTS, CLEAR CORNER, BUMPER, AND SIDE MARKER LIGHTS SOLD AS REPLACEMENT LAMPS FOR USE ON THE PASSENGER VEHICLES LISTED ABOVE. SOME COMBINATION LAMPS THAT ARE NOT EQUIPPED WITH… Remedy: CK MOTORSPORT WILL NOTIFY OWNERS AND REPLACE THE NONCOMPLIANT LAMPS FREE OF CHARGE. THE RECALL BEGAN ON JULY 1, 2006. OWNERS MAY CONTACT CK MOTORSPORT AT 1-909-610-7211.

Technical service bulletins NHTSA · verified

Showing 5 of 31 bulletins on record with NHTSA.

BulletinDateComponentSummary
TSB0032202023-08-17Air BagsTSB: Replacement certification labels (the vinyl label installed on the driver door or…
Toyota PRO19-022022-01-12TiresPOL: This consolidated Tire Warranty Guide contains the complete warranty terms for all…
T-SB-0032-20 Rev2021-02-03EquipmentTSB: Replacement certification labels (the vinyl label installed on the driver door or…
T-SB-0304-17 Obs2020-04-07EquipmentTSB: OBSOLETE NOTICE April 07, 2020: This bulletin is now obsolete. Please see…
T-SB-0032-202020-04-06EquipmentTSB: SUPERSESSION NOTICE The information contained in this bulletin supersedes Service…

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

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VIN
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Recalls
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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 1991 4runner V6 take?

4.4 qt of ABOVE 0 degrees F: 10W-30 API, BELOW 50 degrees F: 5W-30 API, per the factory manual.

Does the 1991 4runner have open recalls?

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

What gas mileage does the V6 get?

EPA figures are 15 city / 19 highway / 17 combined mpg.