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1991 Isuzu Amigo

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

Body SUV

The 1991 Isuzu Amigo entered the market as an SUV near the start of a production run that stretched from 1990 to 2002, and within that broader model history it stands out as one of the lightest years for owner-reported trouble, with just five total complaints and a single recall on file — the bulk of those concerns clustering around wheel-related issues. That 1991 figure looks especially favorable set against the model's worst year, 1998, which generated 81 complaints, while even the line's quietest point of 1997 produced only one report, underscoring how dramatically the nameplate's reliability picture shifted from year to year. For a researcher evaluating the Amigo's long-term patterns, the 1991 model offers a useful anchor: a low-complaint year nested inside a product cycle marked by significant volatility, and a reminder that any judgment on the vehicle's dependability really belongs to a specific model year rather than the badge as a whole.

Model year1994 1993 1992 1991 1990 1989

Service quick specs OEM factory data

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

This engine 80W-90 in the differential.

Lubricants & capacities

Differential Gear Oil	80W-90
Differential Gear Oil Capacity	3.8 Pints
Power Steering Fluid	ATF
Transfer Case Fluid	5W-30
Transfer Case Fluid Capacity	3.2 Pints

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.

At 7,500 mi	Driveshaft Flange Yoke (torque) · Engine Oil Filter (replace) · Universal Vehicle Operation (inspect idle speed)
Every 7,500 mi	Battery (inspect electrolyte level) · Body Latches, Locks & Hinges (inspect) · Brake Hydraulic System (inspect fluid level) · Brake Line (inspect) · CV Joint Boot (inspect) · Clutch Assembly (inspect)
At 15,000 mi	Drive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill)
Every 15,000 mi	Brake Linings (inspect) · Brake Pedal Assembly (inspect) · Clutch Pedal Assembly (inspect) · Cruise Control System (inspect) · Driveshaft Flange Yoke (torque) · Engine Oil Filter (replace)
Every 30,000 mi	Accessory Drive Belt (inspect) · Choke System (inspect) · Clutch Hydraulic Line (inspect) · Drive Axle Assembly (drain & refill) · Engine Air Filter Element (replace) · Spark Plugs (replace)
At 60,000 mi	Drive Axle Assembly (drain & refill) · Transfer Case Assembly (drain & refill) · Transmission Assembly (drain & refill)
Every 60,000 mi	Air Conditioning Condenser (inspect) · Fuel Line (inspect) · Fuel Tank (inspect) · Fuel Tank Filler Cap (inspect) · Radiator (inspect) · Spark Plug Wires (inspect)
Every 90,000 mi	Oxygen Sensor (replace)
At 120,000 mi	Universal Vehicle Operation (inspect idle speed)

Reliability & federal safety record

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

In 1991 the Isuzu Amigo recorded only five consumer complaints, the lowest count in the early‑1990s span (1990‑1994) and well below the dramatic spikes seen later in the late‑1990s. Recall activity remained steady at one recall, matching 1990 and exceeding the zero recalls of 1992‑1993, while investigations stayed at two, identical to the preceding year. Technical Service Bulletins (TSBs) held steady at four, a level that would later jump to 36 in 1998 as complaints surged to 81. The modest complaint profile—focused on wheels, engine cooling, parking brake, and electrical system—combined with a single crash‑related complaint and no fire reports suggests the 1991 model sits at the low‑risk end of the generation’s arc. **Takeaway: 1991 is a comparatively clean year and represents a solid candidate for a used‑car purchase.**

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

1 involved a crash · 0 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’90’91’92 ’93 ’94 ’97 ’98 ’99 ’00 ’01 ’02

Owner complaints filed with NHTSA, by component

All 5 complaints on record, top 5 components.

Wheels1

Engine & Engine Cooling1

Parking Brake1

Electrical System1

Seat Belts1

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 1 of 1 campaigns on record for this vehicle.

93E023000Trailer HitchesReported 22/07/1993

THE WELD ON THE RECEIVER UNIT OF THE TRAILER HITCH CAN BREAK. Remedy: REPLACE THE TRAILER HITCH.

Technical service bulletins NHTSA · verified

Showing 4 of 4 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
IB13-R-001G	2023-05-08	Unknown Or Other	This bulletin outlines the procedures for using the Alpine Exchange Program (the…
WB08-X-001I	2023-05-03	Equipment	This bulletin provides instructions with regard to the Isuzu Commercial Vehicle (CV)…
WB13-X-001B	2022-08-30	Equipment	Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural…
WB13-X-001A	2022-08-02	Equipment	Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural…