The 2020 Lexus IS 350 uses a cartridge-style oil filter that is removed with a dedicated oil filter cap wrench rather than a generic spin-on filter wrench. The basic answer is to use the OEM-style cap wrench designed for 65mm cartridge caps on Toyota/Lexus V6 engines.
On the 2020 IS 350, servicing the engine oil requires removing a plastic cap that houses the cartridge filter. This cap is tightened to a specific torque and sealed with an O-ring, so using the correct cap wrench is essential to avoid damage to the cap or threads. If you don’t have the right tool, you risk stripping the cap or leaking oil after reinstalling.
Understanding the IS 350’s oil filtration setup
The IS 350’s 3.5-liter V6 (2GR-FKS) uses a cartridge-type oil filter rather than a traditional spin-on canister. The cartridge sits inside a removable cap on the engine, and you remove the cap with a compatible cap wrench to access the filter element and O-ring. Replacing the filter correctly requires reseating the cap and O-ring and torquing the cap to the manufacturer’s specification.
Which tool should you use?
Because the IS 350’s filter is cartridge-based, you’ll need a cap-style wrench designed for that specific cap. Look for tools that match a 65mm cartridge oil filter cap used on many Toyota/Lexus V6 engines, and verify the notch or engagement pattern to avoid damage. If you’re unsure, check the service manual for your VIN or confirm compatibility with a Lexus parts advisor.
Before listing concrete options, note that the right tool is the one that fits your cap precisely and engages securely. Using an ill-fitting tool can slip or strip the cap, leading to leaks or costly repairs.
Recommended wrench options
To help you choose, here are the typical tool categories that fit the IS 350’s 65mm cartridge cap. The key is to ensure the tool matches your specific cap’s diameter and notch pattern. Always verify compatibility against your vehicle’s service information.
- OEM Toyota/Lexus oil filter cap wrench designed for 65mm cartridge caps (for the 2GR-FKS and similar engines). This is the most reliable option for a clean removal and proper reseating.
- Universal cap wrenches advertised as fitting 65–68mm cartridge caps with adjustable or interchangeable inserts. Check that the notch pattern matches your cap and that the tool is rated for automotive use.
- Aftermarket cap wrench kits that include the cap tool and replacement O-rings. These are convenient if you service multiple Toyota/Lexus engines, but confirm fitment for the IS 350’s cap pattern before purchasing.
Using the right cap wrench ensures a proper seal and avoids damage to the plastic cap or threads. If you aren’t sure which exact part matches your vehicle, contact a Lexus dealership or a trusted parts retailer with your VIN to confirm compatibility.
How to use the wrench on the IS 350 (2020)
- Warm up the engine slightly, then park on a level surface and turn off the engine.
- Place a drain pan under the oil drain plug and drain the old oil per the service manual.
- Relieve any residual pressure, then remove the oil fill cap to vent the system.
- Use the proper 65mm cartridge oil filter cap wrench to engage and turn the cap counterclockwise to remove it.
- Remove the old cartridge filter and O-ring, clean the cap seating surface, and inspect for damage.
- Install the new cartridge filter with a fresh O-ring, lightly oil the O-ring, and reseat the cap.
- Torque the cap to the manufacturer’s specification as listed in the service manual, then replace the drain plug and refill with the correct oil quantity and grade.
Always follow the service manual for the exact torque specification and oil capacity, and replace any worn seals or gaskets as part of the service. If you’re not comfortable performing this maintenance yourself, a Lexus service professional can complete the job quickly with the right tools.
Tips and safety
- Work with a cool engine to avoid burns and to handle the cap and O-ring properly.
- Inspect the cap threads and housing for damage before reinstalling.
- Dispose of used oil and the old filter in accordance with local regulations.
Summary
The 2020 Lexus IS 350 uses a cartridge-style oil filter that requires a cap-style wrench designed for a 65mm cartridge cap. The safest approach is to use the OEM cap wrench intended for Toyota/Lexus V6 engines, or a verified universal cap wrench that matches your cap’s diameter and notch pattern. Verify compatibility with your VIN and service manual, and replace the O-ring and any seals during reassembly. If in doubt, consult a qualified technician for precise torque specs and service steps.