Complete Oil Specifications
Your 2023 Lexus RX 350 equipped with the 2.4L Turbocharged engine (T24A-FTS) requires 0W-16 full synthetic oil meeting API SP and ILSAC GF-6B standards.
Quick Reference
| Specification | Value |
|---|---|
| Viscosity | 0W-16 |
| API Rating | API SP |
| ILSAC Rating | GF-6B |
| Capacity (with filter) | 5.8 quarts |
| Oil Filter | Toyota 04152-YZZA3 |
| Normal Interval | 10000 miles |
Why 0W-16 is Critical for This Engine
The 2023 RX 350 introduced an entirely new powertrain — the T24A-FTS turbocharged 4-cylinder replaces the 3.5L V6 (2GR-FKS) used through 2022. This is one of Toyota/Lexus’s most technologically advanced engines, combining D-4ST dual port-and-direct injection with a twin-scroll turbocharger and laser-cladded valve seats for reduced friction.
The T24A-FTS is specifically designed around 0W-16 oil to achieve its CAFE fuel economy targets. The turbocharger’s oil-cooled center housing requires low-viscosity oil for rapid bearing lubrication at cold start. The laser-cladded intake valve seats reduce valve stem friction at the cost of tighter oil film tolerances — tolerances calibrated for 0W-16.
Using the previous-gen RX’s oil (0W-20 for the 3.5L V6) in the T24A-FTS will:
- ❌ Not meet ILSAC GF-6B certification required by this engine
- ❌ Slow turbocharger bearing lubrication during the critical first 30 seconds of cold operation
- ❌ Increase friction at the laser-cladded valve seats, reducing the efficiency the engine was designed to deliver
Lexus-Approved Oil Brands
-
✅ Toyota Genuine Motor Oil 0W-16
-
✅ Mobil 1 Advanced Fuel Economy 0W-16
-
✅ Pennzoil Platinum Full Synthetic 0W-16
Confirm the ILSAC GF-6B starburst is present on the bottle — this certification is exclusive to 0W-16 grade oils. Oils labeled GF-6A only are not compliant for the T24A-FTS.
Severe Service Check
You need the 5000-mile interval if you:
- Frequently drive in stop-and-go urban traffic where the turbo cycles frequently
- Make regular short trips under 5 miles in cold weather
- Tow a trailer or carry heavy roof cargo loads frequently
- Operate in extreme heat above 100°F
Installation Details
Drain Plug Torque: 30 ft-lbs The T24A-FTS uses a steel oil pan — less risk of thread damage than aluminum, but always use a torque wrench and replace the crush washer at every service.
OEM Filter: Toyota 04152-YZZA3
Aftermarket Filters:
-
Mobil 1 M1C-155A
-
WIX 57256XP
-
K&N PS-7024
Pro Tip: The T24A-FTS oil filter is a cartridge type in a housing on the front of the engine. Access from the top of the engine bay — no lift required. Use a 64mm cap wrench; torque the housing to 18 ft-lbs after cartridge replacement. Pre-fill the cartridge to reduce the cold-start film gap after the oil change.
FAQs
What oil does a 2023 Lexus RX 350 2.4L Turbo take? 0W-16 full synthetic oil meeting API SP and ILSAC GF-6B standards.
How many quarts does it need? 5.8 quarts with a new filter, 5.5 without.
Is the 2023 RX 350 oil spec different from the 2022 model? Yes — significantly. The 2022 RX 350 used a 3.5L V6 (2GR-FKS) requiring 0W-20 (GF-6A) with a 6.4 qt capacity. The 2023 model uses a completely new 2.4L Turbo-4 (T24A-FTS) requiring 0W-16 (GF-6B) with a 5.8 qt capacity. Do not apply the 2022 spec to a 2023 model.
Can I use 0W-20 since it’s a turbo engine? No. Despite having a turbocharger, Toyota specifically calibrated the T24A-FTS for 0W-16. The turbo bearing clearances are designed for this viscosity. Using 0W-20 will not cause immediate damage but does not meet the manufacturer’s specification.
How often should I change the oil? Every 10000 miles or 12 months for normal driving. The Lexus Maintenance System monitors real driving conditions and may alert you earlier.
Need these specs on your phone? Download OilFinderPro app for offline access and oil change reminders.
Last verified: 2026-04-14 | Source: 2023 Lexus RX Owner’s Manual