How much oil does a Lexus IS300h take?
Around 4.5 liters of engine oil, including the oil filter, for a full change on most IS300h models (roughly 4.7 US quarts with the filter installed).
The Lexus IS300h is a hybrid that combines a 2.5-liter Atkinson-cycle four-cylinder petrol engine with an electric motor. Oil capacity is set to meet the lubrication needs of this powertrain, but the exact amount can vary by market, model year, and whether the filter is replaced during service.
Oil capacity overview
Below are the typical capacity figures you should use as a baseline when planning service work on a Lexus IS300h. Always verify against your owner’s manual for your exact year and region.
Oil capacity figures (with filter):
- Approximately 4.5 liters (about 4.7 US quarts) when the oil filter is replaced.
- Approximately 4.0 liters (about 4.2 US quarts) if the oil filter is not replaced and you are not adding extra oil beyond the required fill.
Note that the recommended oil grade for the IS300h typically includes 0W-20 or 5W-30 depending on market and climate, with synthetic oil commonly advised for modern engines. Always use the oil grade specified in your manual.
Practical guidance for changing oil
When performing an oil change, factor in the full capacity including the filter, and recheck the level with the dipstick after the engine has been started briefly and then shut off. If you’re unsure, consult a Lexus dealer or a qualified technician.
Summary
The IS300h typically requires about 4.5 liters of engine oil during a full change, including the filter. If you don’t replace the filter, you’ll use a little less (around 4.0 liters). Always follow the exact specifications in your vehicle’s manual for your year and market.
