LexusIS3002023Overview/lexus/is300/2023/base/

2023 Lexus IS300

Factory specifications, fluid capacities, torque values, EPA fuel economy and the federal safety record for the 2023 IS300.

Transmission Automatic (S8)

The 2023 Lexus IS300 is equipped with a 6.8‑quart oil capacity and uses 0W‑20/5W‑20 viscosity, paired with an eight‑speed automatic transmission, and it delivers EPA‑rated fuel economy of 21/31/25 mpg. Owner feedback for this model year includes only three complaints, all concerning structure, and no recalls have been issued. This continues a trend that has seen complaint volume drop from a high of 45 in 2002 to just two in 2017, underscoring a strong reliability trajectory for the current IS300.

Model year202520242023202220212020201920182017

Quick specs

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

Engine oil capacity6.8 qtOEM · verified
Engine oil type0W-20 / 5W-20OEM · verified
Lug nut torque103.0 ft-lbsOEM · verified
EPA fuel economy21/31/25 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 9030179006. 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.

Tail / brake / turnAUTOOEM · verified
Tire size235/45R18 94VOEM · verified
Wheel / rim8.5 inOEM · verified

OE service part numbers OEM · verified

Engine oil filter9030179006 alt 9672335028
Engine air filter1780131170
Fuel filter7702453100 alt 2321731080
Spark plug9091901276 alt 9091901263
Battery2880038100
Front wiper blades8521253100 alt 8522253090
Serpentine belt90916A2026 alt 9091602727
Thermostat9091603156 alt 9091603154
Cabin air filter8713930100

Full specifications

Engine, drivetrain, dimensions and economy.

Engine & drivetrain NHTSA vPIC

TransmissionAutomatic (S8)

Ratings & economy EPA / vPIC

EPA city / highway / combined21 / 31 / 25 mpg
DrivetrainRear-Wheel Drive
Passenger volume90 cu ft
Cargo volume11 cu ft
Recommended fuelPremium Gasoline

Service quick specs OEM factory data

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

This engine holds 6.8 qt of 0W-20 / 5W-20 engine oil, GL-5 · SAE 90W · SAE 80W · 80W-90 in the differential, DOT 3 · SAE J1703 · DOT 4 · SAE J1704 brake fluid. Torque lug nuts to 103.0 ft-lbs.

Lubricants & capacities

Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity10.6 qt
Automatic Transmission FluidATF
Automatic Transmission Fluid Capacity9.2 qt
Brake FluidDOT 3 · SAE J1703 · DOT 4 · SAE J1704
Differential Gear Oil75W-85 · GL-5
Differential Gear OilGL-5 · SAE 90W · SAE 80W · 80W-90
Differential Gear Oil Capacity0.74 qt

Chassis torques

Lug Nuts103.0 ft-lbs

Ignition

Curb Idle Speed (No Load)650 rpm
Curb Idle Speed Variance (No Load)50 rpm

Factory maintenance schedule OEM · verified

Normal service, condensed from the factory interval matrix.

Under the factory schedule, replace the engine oil and filter every 10,000 mi; spark plugs every 40,000 mi; coolant every 50,000 mi. The big-interval services (every 50,000 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 miUniversal Vehicle Operation (inspect all fluid levels)
Every 5,000 miBrake System (inspect) · Floor Mat (inspect) · Fuel Tank (add fluid conditioner) · Tire & Wheel Assembly (rotate) · Universal Vehicle Operation (road test) · Windshield Wiper Blade (inspect)
Every 10,000 miCabin Air Filter (replace) · Engine Oil (drain & refill) · Engine Oil Filter (replace) · Universal Vehicle Operation (inspect all fluid levels)
Every 15,000 miAccessory Drive Belt (inspect) · Brake Line (inspect) · CV Joint Boot (inspect) · Drive Axle Assembly (inspect) · Engine Coolant System (inspect fluid level) · Exhaust System (Complete) (inspect)
Every 30,000 miBrake Hydraulic System (drain, refill & bleed) · Brake Rotor (inspect) · Engine Air Filter Element (replace) · Fuel Evaporative Emission Control System Lines (inspect) · Fuel Line (inspect) · Fuel Tank Filler Cap O-Ring (inspect)
Every 40,000 miSpark Plugs (replace)
Every 50,000 miEngine Coolant System (drain, flush & refill) · Intercooler (drain & refill)
At 60,000 miAccessory Drive Belt (inspect)
At 100,000 miEngine Coolant System (drain, flush & refill) · Intercooler (drain & 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.

Federal data for the 2023 Lexus IS300 registers a minimal complaint footprint of just three incidents distributed across Structure, Visibility, and Power Train, accompanied by zero crash or fire complaints. This volume continues the low-incident trajectory established during the 2016–2019 period, when annual complaints ranged from two to seven, a significant reduction from the 2001–2005 era’s 16 to 45 annual complaints. The 2023 model year therefore sits within the generation’s mature phase of minimal reported issues, though the data does not specify root causes for the individual complaints recorded. Given incident rates remain at generational lows with no safety-related complaints documented, 2023 stands out as a sound year to purchase.

0
Open recalls
NHTSA campaigns
71
Service bulletins
Manufacturer communications
0
ODI investigations
Office of Defects Investigation
3
Owner complaints
0 involved a crash · 0 a fire
NHTSA crash-test rating federal NCAP · out of 5 stars
Overall★★★★★
Frontal★★★★
Side★★★★★
Rollover★★★★★
Owner complaints by model year NHTSA · this generation & adjacent

Owner complaints filed with NHTSA, by component

All 3 complaints on record, top 3 components.

Structure1
Visibility1
Power Train1

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 71 bulletins on record with NHTSA.

BulletinDateComponentSummary
L-SB-0057-22 Rev22026-02-02Electrical SystemOBSOLETE NOTICE February 2, 2026: This bulletin is now obsolete. Please see L-SB-0004-26.
L-SB-0004-262026-01-23Electrical SystemSome 2018 – 2025 model year Lexus vehicles equipped with the Enform™ 2.0 Navigation…
L-SB-0030-24 Rev22025-12-15StructureSome 2005 – 2026 Lexus vehicles that have undergone water intrusion may exhibit a…
L-TT-0326-23 Rev22025-08-19Electrical SystemSome customers may experience operational difficulties with some telematics features…
L-SB-0032-252025-07-30EngineSome 2016 – 2020 model year GS F, 2008 – 2014 model year IS F, 2022 – 2025 model year IS…

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 IS300. 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

How much oil does the 2023 IS300 take?

6.8 qt of Toyota Genuine Motor Oil ILSAC GF-6A 0W-20 or Equivalent. If 0W-20 is unavailable 5W-20 may be used but must be replaced with 0W-20 at the next oil change., per the factory manual.

Does the 2023 IS300 have open recalls?

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

What gas mileage does the IS300 get?

EPA figures are 21 city / 31 highway / 25 combined mpg.