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
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✅ 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.
Last verified: 2026-04-14 | Source: 2023 Lexus RX Owner’s Manual