Infiniti›G20›2002›Overview/infiniti/g20/2002/base/

2002 Infiniti G20

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2002 G20.

Body PASSENGER CARTransmission Automatic 4-spd

The 2002 Infiniti G20 is a passenger‑car that carries an automatic four‑speed drivetrain and a 3.6‑quart oil capacity lubricated with 5W‑30 API SM oil, delivering EPA‑rated 20 city/28 highway/23 combined mpg. Its powertrain is part of a model line that, across its 1991‑2002 production run, recorded a high of 29 complaints in 1995 and a low of 7 in 1994, with the 2002 version contributing to the overall tally of seven owner complaints, all concentrated in the engine and cooling systems and with no recalls. Thus, the 2002 G20 represents a period of relatively modest complaint volume, signaling a mature stage of the model’s reliability history.

Model year2002 2001 2000 1999 1996 1995 1994 1993 1992

Quick specs

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

Engine oil capacity3.6 qtOEM · verified

Engine oil type5W-30 API SMOEM · verified

Lug nut torque87-108 ft-lbsOEM · verified

EPA fuel economy20/28/23 mpgEPA · verified

Fitment & sizes

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

From the factory this vehicle uses a BCI 24F · 585 CCA battery, OE oil filter 1520865F0E. 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 24F · 585 CCAOEM · verified

Tail / brake / turnTURNOEM · verified

Tire sizeP195-65HR15OEM · verified

Wheel / rim7-JJ inOEM · verified

OE service part numbers OEM · verified

Engine oil filter	1520865F0E
Engine air filter	16546V0100
Fuel filter	1640041B1A
Spark plug	224011P116 alt 2240120J05
Front wiper blades	288901E301 alt 288907J111
Serpentine belt	119200E001 alt 1195053J20
Thermostat	2120060J00
Cabin air filter	27277VP03A

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

Transmission

Automatic 4-spd

Dimensions & weight NHTSA vPIC

Overall length	177.6 in
Overall width	66.5 in
Overall height	55.1 in
Wheelbase	102.4 in
Curb weight	2937 lb
Track (front / rear)	57.9 / 57.5 in
Weight distribution (front / rear)	62/38

Ratings & economy EPA / vPIC

EPA city / highway / combined	20 / 28 / 23 mpg
Drivetrain	Front-Wheel Drive
Passenger volume	91 cu ft
Cargo volume	14 cu ft
Recommended fuel	Regular Gasoline

Performance & power Independent road tests

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

Independent road tests for the G20 of this era, listed by trim and engine — this page spans more than one engine, so no single horsepower figure is shown.

8.5–10.8 sec0–60 mph (tested)quickest 8.50 sec — 1999 t Sedan

Year	Trim / engine	0–60	¼ mile	HP	Drivetrain
1999	t Sedan 2.0L I-4	8.50 sec	16.30 sec	140 hp	FWD
1999	t Sedan 2.0L I-4	10.70 sec	18.00 sec	140 hp	FWD
1999	t Sedan 2.0L I-4	10.82 sec	18.07 sec	140 hp	FWD

Service quick specs OEM factory data

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

This engine holds 3.6 qt of 5W-30 API SM engine oil, DOT 3 brake fluid. Torque lug nuts to 87-108 ft-lbs, the oil drain plug to 22.0-28.0 ft-lbs. The firing order is 1-3-4-2. 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 Coolant	ETHYLENE GLYCOL
Engine Oil	5W-30 · API
Engine Oil Capacity	3.6 qt
Power Steering Fluid	ATF

Engine torques

Engine Flywheel Bolts	61-69 ft-lbs
Engine Oil Pan Drain Plug	22.0-28.0 ft-lbs

Chassis torques

Lug Nuts	87-108 ft-lbs
Front Wheel Hub	174-231 ft-lbs
Rear Wheel Hub	156 ft-lbs

Ignition

Cylinder Firing Order	1-3-4-2
Curb Idle Speed (No Load)	800 rpm
Curb Idle Speed Variance (No Load)	50 rpm
Ignition Coil Primary Resistance	0.5-1.0 ohms
Ignition Coil Secondary Resistance	25,000 ohms
Spark Plug Gap	0.043 in
Spark Plug Torque	18.0 ft-lbs
Ignition Timing	15 degrees

Battery & A/C

Refrigerant	R134a
Refrigerant Capacity	1.21-1.45 lbs
Oil Group	PAG
Oil Type	100
Oil Capacity	6.10 oz
Standard BCI Group Number	24F
Standard BCI Cranking Performance	585 cca

Service checks

Pressure Test	23 psi
Radiator Cap Pressure Relief	11-14 psi
Thermostat Opening Temperature	180 °F
Regulated Fuel System Pressure (Without Vacuum)	43.0 psi
Regulated Fuel System Pressure (With Vacuum)	34.0 psi
Engine Oil Pressure	11.7 psi @ Idle, 46-57 psi @ 3000 rpm psi
Intake Valve Lash	Hydraulic in
Exhaust Valve Lash	Hydraulic in

Brakes

Torque Caliper to Bracket	53-72 ft-lbs / 16-23 ft-lbs
Torque to Knuckle	72-87 ft-lbs
Minimum Pad Thickness	Front: 0.079; Rear: 0.079 in
Rotor Max Parallel Variation	0.0004 in
Rotor Runout Limit	0.0028 in
Rotor Nominal Thickness From	0.87 in / 0.35 in
Rotor Nominal Thickness To	0.87 in / 0.35 in
Rotor Minimum Machining	0.787 in / 0.31 in

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages

Intake Side

1.5 ft. lbs

Connecting Rod (Large End) Bearings — tightening sequence 1 stages

10-12 ft. lbs., Step 2: 60-65

10–12 ft. lbs

Cylinder Head — tightening sequence 6 stages

1	29 ft. lbs.	29 ft. lbs
2	58 ft. lbs.	58 ft. lbs
3	loosen all bolts completely
4	29 ft. lbs.	29 ft. lbs
5	90-95 degrees	90–95 degrees
6	90-95

Cylinder Head — tightening sequence 6 stages

Prep Measure the diameter of each cylinder head bolt at point A and point B. Point A = 15.00 mm from thread end and point B = 55.00 mm from thread end. If either diameter is less than 0.23 mm use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.

1	29.0 ft. lbs.	29 ft. lbs
2	58.0 ft. lbs.	58 ft. lbs
3	Loosen bolts 360 degrees in reverse order	360 degrees
4	29.0 ft. lbs.	29 ft. lbs
5	90 degrees-95 degrees	90 degrees
6	90 degrees-95 degrees	90 degrees

Main Bearings — tightening sequence 1 stages

5-9 ft. lbs., Step 2: 70-80 degrees, Step 3: Back off 360 degrees ft. lbs., Step 4: 30-35

5–9 ft. lbs

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; spark plugs at 105,000 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 7,500 mi	Battery (inspect electrolyte level) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 mi	Accessory Drive Belt (inspect) · Axle Shaft Oil Seal (inspect) · Brake System (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace) · Cruise Control System (inspect)
Every 30,000 mi	Engine Air Filter Element (replace) · Engine Coolant System (drain, flush & refill) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Steering Linkage (inspect) · Suspension System (inspect)
At 60,000 mi	Accessory Drive Belt (inspect) · Engine Coolant System (drain, flush & refill)
At 105,000 mi	Spark Plugs (replace)

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 2002 model year represents the final year of the second-generation G20 production run, carrying forward the zero-recall record established since 1999 while maintaining the generation's low complaint volume at seven reports—matching 1999 and 2001 figures and improving upon 2000's ten complaints. Unlike the first generation (1991-1996), which averaged two recalls annually and peaked at 29 complaints in 1995, the 1999-2002 span shows a consistent absence of recalls and investigations alongside declining technical service bulletins from a high of 66 in 2000 down to 56 in 2002. The 2002 complaint profile shows no concentration of safety-critical issues, with only two engine-related reports and isolated single entries for air bags and visibility, plus zero crash or fire complaints recorded. Given its position at the end of a mature production cycle with diminishing factory service bulletins, minimal owner complaints, and no federal safety actions, the 2002 G20 presents as a stable candidate for purchase within this generation.

Open recalls

NHTSA campaigns

Service bulletins

Manufacturer communications

ODI investigations

Office of Defects Investigation

Owner complaints

0 involved a crash · 0 a fire

NHTSA crash-test rating federal NCAP · out of 5 stars

Rollover★★★★★

Owner complaints by model year NHTSA · this generation & adjacent

’91 ’92 ’93 ’94 ’95 ’96 ’99 ’00 ’01’02

Owner complaints filed with NHTSA, by component

All 7 complaints on record, top 6 components.

Engine & Engine Cooling2

Air Bags1

Air Bags,Child Seat1

Visibility1

Wheels1

Exterior Lighting1

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 5 of 56 bulletins on record with NHTSA.

Bulletin	Date	Component	Summary
ITB09-063C	2026-04-13	Structure	CERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision…
ITB13-052E	2024-05-20	Electrical System	INTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See…
ITB17-009H	2024-04-29	Visibility/Wiper	WINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY…
ITB13-007I	2024-04-29	Visibility/Wiper	REMOVING FOREIGN MATERIAL FROM THE WINDOW GLASS This bulletin has been amended. See…
ITB09-039K	2024-04-29	Visibility/Wiper	WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last…

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 G20. 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 24F battery Vehicles taking 3.6 qt Engine oil filter 1520865F0E Engine air filter 16546V0100 Fuel filter 1640041B1A Spark plug 224011P116

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 2002 G20 take?

3.6 qt of 5W-30 API SM, per the factory manual.

Does the 2002 G20 have open recalls?

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

What gas mileage does the G20 get?

EPA figures are 20 city / 28 highway / 23 combined mpg.