How to Change Engine Oil 98-05 Lexus GS300

Difficulty: Beginner · About 6 min · Lexus Gs300

Change the engine oil and filter on a 1998–2005 Lexus GS300, safely supporting the vehicle and confirming the final oil level with the dipstick after startup.

Steps

1. Prepare the vehicle

   Park on level ground, warm the engine briefly, switch it off, and secure the wheels. Remove the oil cap, then raise and support the vehicle at approved points.

2. Drain the old oil

   Place a drain pan beneath the sump and remove the drain plug carefully. Let the oil drain fully, inspect the plug and seal, and reinstall the plug to the vehicle specification.

3. Replace the oil filter

   Use an oil-filter wrench if needed and remove the old filter. Make sure its gasket came off with it, clean the mounting surface, lightly oil the new gasket, and install the filter by hand as directed by its maker.

4. Add specified engine oil

   Lower the vehicle if appropriate and add the oil grade and capacity listed in the owner's manual. Refit the filler cap and verify the dipstick is fully seated.

5. Check level and leaks

   Start the engine briefly and check around the filter and drain plug for leaks. Shut it off, wait for oil to settle, then check the dipstick and add small amounts as needed without overfilling.

Check your vehicle’s repair manual for exact specifications and fit.