InfinitiEX2013Overview/infiniti/ex/2013/base/

2013 Infiniti EX

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2013 EX.

Body PASSENGER CARTransmission Automatic (S7)

The 2013 Infiniti EX is a passenger‑car built on Infiniti’s compact‑crossover platform and equipped with an S7 automatic transmission, delivering a combined EPA rating of 20 mpg (18 city/25 highway). Its drivetrain balances efficiency with the refinement expected of a luxury‑brand crossover, while the modest fuel consumption figures reflect the model’s focus on everyday usability rather than outright performance. Reliability data for this year are notably clean, with only two owner complaints recorded—primarily concerning steering—and no recalls issued, placing the 2013 EX near the top of the model’s historical reliability record and suggesting a generally dependable ownership experience.

Quick specs

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

EPA fuel economy18/25/20 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 · 720 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 · 720 CCAOEM · verified
Tail / brake / turnSIDEOEM · verified
Tire sizeP225-55R18OEM · verified
Wheel / rim8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter1520865F0E
Engine air filter16546JK20A
Spark plug22401JK01D
Front wiper blades288903WU0A alt 28890JK67A
Serpentine belt11720EY00A
Thermostat1305031U00 alt 2120031U03
Cabin air filter27277VX01A alt B72771CA1B

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S7)

Dimensions & weight NHTSA vPIC

Overall length182.3 in
Overall width70.9 in
Overall height62.6 in
Wheelbase110.2 in
Curb weight4032 lb
Track (front / rear)60.2 / 60.2 in
Weight distribution (front / rear)53/47

Ratings & economy EPA / vPIC

EPA city / highway / combined18 / 25 / 20 mpg
DrivetrainRear-Wheel Drive
Passenger volume92 cu ft
Cargo volume19 cu ft
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

Torque the oil drain plug to 25.0 ft-lbs. The firing order is 1-2-3-4-5-6. 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

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity9.8

Engine torques

Engine Flywheel Bolts65 ft-lbs
Exhaust Manifold to Cylinder Head Bolts22 ft-lbs
Engine Oil Pan Drain Plug25.0 ft-lbs
Oil Pump to Cylinder BLock Bolts/Studs5 ft-lbs

Ignition

Cylinder Firing Order1-2-3-4-5-6
Ignition Timing15, Not adjustable degrees
Ignition Timing Acceptable Variance5 degrees
Ignition Timing Reference RPMIdle rpm

Battery & A/C

RefrigerantR134a
Refrigerant Capacity1.21 lbs
Oil GroupPAG
Oil Type46
Oil Capacity5.07 oz
Standard BCI Group Number24F
Standard BCI Cranking Performance720 cca

Service checks

Regulated Fuel System Pressure (Without Vacuum)51.0 psi
Engine Compression242-341 PSI. 14 maximum variation PSI.

Brakes

Torque Caliper to Bracket20 ft-lbs / 32 ft-lbs
Torque to Knuckle91 ft-lbs / 62 ft-lbs
Minimum Pad ThicknessFront: 0.079; Rear: 0.079 in
Rotor Max Parallel Variation0.0006 in
Rotor Runout Limit0.0014 in / 0.0022 in
Rotor Nominal Thickness From1.102 in / 0.63 in
Rotor Nominal Thickness To1.102 in / 0.63 in
Rotor Minimum Machining1.024 in / 0.551 in

Multi-step torque procedures OEM · verified

Camshaft Bearing/Carrier Cap Bolts or Studs — tightening sequence 1 stages
11.0 ft lbs., Step 2: 4.0 ft. lbs., Step 3: 8.01 ft lbs
Connecting Rod (Large End) Bearings — tightening sequence 1 stages
121 ft. lbs., Step 2: Back off 360 degrees, Step 3: 18 ft. lbs., Step 4: 9021 ft. lbs
Crankshaft Pulley and/or Damper Bolts — tightening sequence 1 stages
133 ft. lbs., step 2: 9033 ft. lbs
Cylinder Head — tightening sequence 5 stages

Prep Measure the diameter of each cylinder head bolt at point A and point B. Point A = 11.00 mm from thread end and point B = 48.00 mm from thread end. If either diameter is less than 0.18 mm use new bolts coated with clean engine oil. Tighten all bolts to finger tight then continue on with the following procedure.

177.0 ft. lbs.77 ft. lbs
2Loosen bolts 360 degrees in reverse order360 degrees
330.0 ft. lbs.30 ft. lbs
495 degrees95 degrees
595 degrees95 degrees
Intake Manifold to Engine Bolts — tightening sequence 1 stages
15 ft. lbs., step 2: 19 ft. lbs., step 3: intake collector: 85 ft. lbs
Main Bearings — tightening sequence 1 stages
126 ft. lbs., Step 2: 9026 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 at 105,000 mi. The big-interval services (at 105,000 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 miEngine Oil (drain & refill) · Engine Oil Filter (replace) · Tire & Wheel Assembly (rotate)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Line (inspect) · Brake Linings (inspect) · Brake Rotor (inspect) · CV Joint Boot (inspect) · Cabin Air Filter (replace)
Every 30,000 miBody Latches, Locks & Hinges (lubricate) · Brake Hydraulic System (drain, refill & bleed) · Drive Axle Assembly (drain & refill) · Drive Belt (replace) · Engine Air Filter Element (replace) · Exhaust System (Complete) (inspect)
At 60,000 miAccessory Drive Belt (inspect)
At 105,000 miEngine Coolant System (drain, flush & refill) · Spark Plugs (replace)
At 180,000 miEngine Coolant System (drain, flush & refill)

Reliability & federal safety record

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

Owner complaints about the 2013 Infiniti EX dominate in one area — the steering, 1 of 2 reports (50%), well ahead of the next concern. NHTSA has issued no recalls for this vehicle, so these are owner-reported concerns only. 0 of the reports describe a crash and 0 a fire — a small share of the total, but worth weighing against the steering pattern above. These are tallies of what owners actually reported to the federal government, not an editorial score — and higher-selling models naturally rack up more reports.

0
Open recalls
NHTSA campaigns
60
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
2
Owner complaints
0 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Rollover★★★★

Owner complaints filed with NHTSA, by component

All 2 complaints on record, top 2 components.

Steering1
Unknown Or Other1

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 60 bulletins on record with NHTSA.

BulletinDateComponentSummary
ITB09-063C2026-04-13StructureCERTIFICATION LABEL AND VIN PLATE REPLACEMENT SERVICE INFORMATION Because of collision…
ITB10-029C2024-05-20Electrical SystemCAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended…
ITB13-052E2024-05-20Electrical SystemINTELLIGENT KEY NOT DETECTED / ENGINE WILL NOT START This bulletin has been amended. See…
ITB13-006D2024-05-20Electrical SystemCAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See…
ITB17-009H2024-04-29Visibility/WiperWINDOW GLASS WARRANTY INFORMATION This bulletin has been amended. See AMENDMENT HISTORY…

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 EX. 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

Does the 2013 EX have open recalls?

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

What gas mileage does the EX get?

EPA figures are 18 city / 25 highway / 20 combined mpg.