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1998 Ford Mustang

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 1998 Mustang.

Body PASSENGER CAR

The 1998 Ford Mustang is a passenger car whose maintenance profile calls for 5.0 quarts of 5W-20 API engine oil, placing it within the standard service requirements of Ford's pony-car platform for that era. With 336 total owner complaints and 14 recalls on record, this model year occupies a middle-to-upper tier in the Mustang's broader reliability history spanning 1990 through 2026 — substantially below the 2005 peak of 868 complaints but well above the minimal figures seen in the most recent model years. Engine and Engine Cooling stands as the top complaint area, meaning researchers evaluating this vintage should focus their attention on powertrain-related durability concerns as the primary ownership risk.

Model year2025 2024 2023 2022 2021 2020 2019 2018 1998

Quick specs

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

Engine oil capacity5.0 qtOEM · verified

Engine oil type5W-20 APIOEM · verified

Lug nut torque85-105 ft-lbsOEM · verified

Fitment & sizes

Replacement part sizes and factory part numbers — battery, bulbs, filters and belts.

From the factory this vehicle uses a BCI 59 · 540 CCA battery. 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.

Battery groupBCI 59 · 540 CCAOEM · verified

Tire sizeP205-65TR15OEM · verified

Wheel / rim8-JJ inOEM · verified

Full specifications

Engine, drivetrain, dimensions and economy.

Dimensions & weight NHTSA vPIC

Overall length	181.5 in
Overall width	71.7 in
Overall height	53.5 in
Wheelbase	101.2 in
Curb weight	3269 lb
Track (front / rear)	60.6 / 59.1 in

Performance & power Independent road tests

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

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

4.7–11.2 sec0–60 mph (tested)quickest 4.70 sec — 2003 Mach 1 Premium Coupe

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1997	GT Convertible 4.6L V8	6.50 sec	15.10 sec	215 hp	RWD
1999	GT Coupe 4.6L V8	5.40 sec	14.00 sec	260 hp	RWD
1999	GT Coupe 4.6L V8	5.50 sec	14.20 sec	260 hp	RWD
1999	GT Coupe 4.6L V8	5.50 sec	14.10 sec	260 hp	RWD
1999	V6 Coupe 3.8L V6	7.10 sec	15.60 sec	190 hp	RWD
1999	V6 Convertible 3.8L V6	8.60 sec	16.50 sec	190 hp	RWD
1996	GT Coupe 4.6L V8	6.60 sec	15.10 sec	215 hp	RWD
1996	GT Coupe 4.6L V8	6.80 sec	15.20 sec	215 hp	RWD

Service quick specs OEM factory data

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

This engine holds 5.0 qt of 5W-20 API engine oil, DOT 3 brake fluid. Torque lug nuts to 85-105 ft-lbs, the oil drain plug to 19.0 ft-lbs. The firing order is 1-3-7-2-6-5-4-8. Note the cylinder-head bolts finish on a torque angle (torque-to-yield) — they stretch permanently and should be replaced, not reused, during any head service.

Lubricants & capacities

Brake Fluid	DOT 3
Engine Oil	5W-20 · API
Engine Oil Capacity	5.0 qt
Engine Oil	5W-20 · API
Engine Oil Capacity	5.0 qt
Engine Oil	5W-20 · API
Engine Oil Capacity	6.0 qt
Power Steering Fluid	ATF

Engine torques

Crankshaft Pulley and/or Damper Bolts	114-121 ft-lbs
Intake Manifold to Engine Bolts	6-9 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	18 ft-lbs
Intake Manifold to Engine Bolts	Upper: 5.9-; Lower: 5.9-
Exhaust Manifold to Cylinder Head Bolts	15 ft-lbs
Intake Manifold to Engine Bolts	18 ft-lbs
Exhaust Manifold to Cylinder Head Bolts	14-16 ft-lbs
Engine Oil Pan Drain Plug	19.0 ft-lbs

Chassis torques

Lug Nuts	85-105 ft-lbs
Front Wheel Hub	258 ft-lbs

Ignition

Cylinder Firing Order	1-4-2-5-3-6
Cylinder Firing Order	1-3-7-2-6-5-4-8
Curb Idle Speed (No Load)	MT:720, AT: 700 rpm
Curb Idle Speed Variance (No Load)	25 rpm
Spark Plug Manufacturer	Motorcraft
Spark Plug Gap	0.052-0.056 in
Spark Plug Torque	5.0-11.0 ft-lbs
Spark Plug Manufacturer	Motorcraft

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	2.13 lbs
Oil Group	PAG
Oil Type	46
Oil Capacity	7.00 oz
Standard BCI Group Number	59
Standard BCI Cranking Performance	540 cca
Standard BCI Group Number	59

Service checks

Pressure Test	13-18 psi
Radiator Cap Pressure Relief	13-18 psi
Thermostat Opening Temperature	189-196 °F
Pressure Test	13-18 psi
Radiator Cap Pressure Relief	13-18 psi
Key ON Engine OFF (KOEO)	30.0-45.0
Key ON Engine OFF (KOEO)	30.0-45.0
Injector Primary Resistance	11-18 na ohms

Brakes

Torque Caliper to Bracket	23-26 ft-lbs / 96 ft-lbs
Torque to Knuckle	65-87 ft-lbs / 85-105 ft-lbs
Minimum Pad Thickness	Front: 0.040; Rear: 0.125 in
Rotor Max Parallel Variation	0.0004 in / 0.0003 in
Rotor Runout Limit	0.004 in / 0.002 in
Rotor Nominal Thickness From	1.03 in / 0.55 in
Rotor Nominal Thickness To	1.03 in / 0.55 in
Rotor Minimum Machining	0.97 in / 0.5 in

Multi-step torque procedures OEM · verified

Cylinder Head — tightening sequence 3 stages

1	14 ft. lbs.	14 ft. lbs
2	29 ft. lbs.	29 ft. lbs
3	36 ft. lbs.; Perform following 3 steps on each bolt; before moving to next bolt in sequence	36 ft. lbs
1	loosen 2-3 turns
2	if long bolt	30–37 ft. lbs
3	turn 175-185 degrees; Proceed to next bolt in sequence	175–185 degrees

Cylinder Head — tightening sequence 6 stages

1	30 ft. lbs.	30 ft. lbs
2	90 degrees	90 degrees
3	loosen 1 turn
4	30 ft. lbs.	30 ft. lbs
5	90 degrees	90 degrees
6	90

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.

At 5,000 mi	Tire & Wheel Assembly (rotate)
Every 5,000 mi	Clutch Pedal Assembly (inspect) · Engine Oil (drain & refill) · Engine Oil Filter (replace)
Every 10,000 mi	Tire & Wheel Assembly (rotate)
Every 15,000 mi	Engine Coolant System (leak inspection) · Steering Linkage (inspect) · Suspension System (inspect)
Every 20,000 mi	Accessory Drive Belt (inspect)
Every 30,000 mi	Brake Linings (inspect) · Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Exhaust System Heat Shield (inspect) · Transmission Assembly (drain & refill)
At 50,000 mi	Engine Coolant System (drain, flush & refill)
Every 60,000 mi	PCV Valve (replace)
At 100,000 mi	Accessory 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.

Across this generation's lifecycle, federal complaints and recalls peaked during the 1994-1995 redesign years before generally declining, though the 1998 model year represents a distinct uptick in that downward arc. Specifically, 1998 complaints rose to 336 from 242 in 1997, accompanied by a spike in recalls to 14, making it the highest recall year since the problematic 1995 model. For the 1998 Mustang, the data indicates 51 crash and 22 fire complaints, with Engine & Engine Cooling leading the issues at 88 reports, followed by Fuel System, Gasoline (30) and Vehicle Speed Control (19), though the data does not specify the root causes for these failures. Positioned just before the 1999 refresh, this mid-generation spike suggests component-specific vulnerabilities rather than initial redesign bugs. Given the elevated recall count and concentration of engine and fire-related complaints compared to the more stable later years, the 1998 Mustang is a riskier buy; if you purchase one, strictly verify that all 14 safety recalls have been completed.

Open recalls

NHTSA campaigns

228

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

336

Owner complaints

51 involved a crash · 22 a fire

Owner complaints by model year NHTSA · this generation & adjacent

’90 ’91 ’92 ’93 ’94 ’95 ’96 ’97’98’99 ’00 ’01 ’02 ’03 ’04 ’05 ’06 ’07 ’08 ’09 ’10 ’11 ’12 ’13 ’14 ’15 ’16 ’17 ’18 ’19 ’20 ’21 ’22 ’24 ’25 ’26

Owner complaints filed with NHTSA, by component

All 336 complaints on record, top 8 components.

Engine & Engine Cooling88

Fuel System, Gasoline30

Seat Belts20

Vehicle Speed Control19

Steering18

Parking Brake18

Power Train17

Suspension14

Source: NHTSA Office of Defects Investigation complaint database.

Recalls NHTSA · verified

Showing 2 of 14 campaigns on record for this vehicle.

09E025000Exterior Lighting:HeadlightsReported 11/05/2009

DOPE, INC. IS RECALLING 42,540 COMBINATION CORNER AND BUMPER LAMP ASSEMBLIES OF VARIOUS PART NUMBERS SOLD FOR USE AS AFTERMARKET EQUIPMENT FOR VARIOUS PASSENGER VEHICLES. THESE HEADLAMPS FAIL TO CONFORM TO THE… Remedy: DOPE, INC. WILL NOTIFY OWNERS AND OFFER A FULL REFUND FOR THE NONCOMPLIANT COMBINATION LAMPS. THE SAFETY RECALL BEGAN ON JULY 28, 2009. OWNERS MAY CONTACT DOPE, INC. AT…

08E050000Exterior Lighting:HeadlightsReported 11/08/2008

K2 MOTOR IS RECALLING 1,921 AFTERMARKET HEADLAMPS OF VARIOUS MODELS SOLD FOR USE ON THE ABOVE LISTED VEHICLES. THESE HEADLAMPS ARE MISSING THE AMBER SIDE REFLEX REFLECTOR WHICH FAILS TO CONFORM WITH THE REQUIREMENTS OF… Remedy: K2 MOTOR WILL NOTIFY OWNERS AND OFFER A FULL REFUND. THE RECALL BEGAN ON DECEMEBER 17, 2008. OWNERS MAY CONTACT K2 MOTOR AT 1-909-839-2992.

Technical service bulletins NHTSA · verified

Showing 5 of 228 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
07212	2007-10-01	Engine And Engine Cooling	SOME 1997-2008 VEHICLES EQUIPPED WITH A 4.6L 2V, 5.4L 2V, OR 6.8L 2V ENGINE--SPARK PLUG…
05N04	2005-12-14	Engine And Engine Cooling	EXTENDED COVERAGE PROGRAM 05N04 - EXTENDED COVERAGE FOR COMPOSITE INTAKE MANIFOLD. THIS…
041601	2005-11-14	Engine And Engine Cooling	WDS COP KIT DIAGNOSTIC TIP - COIL ON PLUG (COP) IGNITION SYSTEMS - ENGINE MISFIRE OR…
042107	2004-12-13	Power Train	GENERAL (PCM) POWER TRAIN CONTROL MODULE PROGRAMMING PROCEDURES. *TT
031404	2004-08-23	Engine And Engine Cooling	ENGINE MISFIRE OR RUNNING - COIL ON PLUG (COP) IGNITION SYSTEMS - WDS COP KIT DIAGNOSTIC…

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 Mustang. 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.

Group 59 battery Vehicles taking 5.0 qt

Reference guides

Cross-vehicle references for the kinds of data on this page.

Vehicle recalls & TSBs OBD-II trouble codes Torque specifications Maintenance schedules Fluid capacities & specs

Frequently asked

How much oil does the 1998 Mustang take?

5.0 qt of 5W-20 API, per the factory manual.

Does the 1998 Mustang have open recalls?

NHTSA lists 14 recall campaign(s) for this model year. Check your specific vehicle by VIN.