The 2019 Lexus IS 300 requires 0W-20 synthetic motor oil that meets API SN/GF-5, with an approximate capacity of 4.5 quarts including the filter. This is the quick answer you need for a routine oil service.
For a deeper look, this article breaks down the official oil specification, the expected oil capacity, recommended change intervals, and practical tips to keep the IS 300’s engine running clean and efficiently.
Oil specification and grade
Understanding the exact oil grade and specification helps ensure your engine gets the protection it needs. The IS 300’s 2.0-liter turbo engine is designed to run on a specific synthetic blend that meets industry standards for performance and protection.
- Grade: 0W-20 full synthetic motor oil
- Standards: API SN or ILSAC GF-5
- Compatibility: Lexus Genuine Motor Oil or an equivalent that meets the above specs
In practice, most service providers and manufacturers confirm that 0W-20 synthetic oil that meets API SN and GF-5 is the standard requirement for the 2019 IS 300. Always verify with your owner's manual or a Lexus dealer for regional variations.
Oil capacity and change interval
Knowing how much oil you need and how often to change it helps you budget maintenance and avoid over- or underfilling the engine.
- Oil capacity: approximately 4.5 quarts (including the oil filter)
- Change interval: follow the vehicle’s maintenance minder; typically around 10,000 miles (16,000 km) for normal driving, with shorter intervals under severe conditions
- Oil filter: replace at every oil change to ensure proper filtration and flow
These guidelines align with Lexus/ Toyota maintenance practices, but always consult the owner’s manual or your dealer for any climate- or usage-specific recommendations. The maintenance minder system will indicate when an oil change is due based on driving conditions.
Practical tips for compliant changes
To keep the IS 300’s engine in top condition, follow these practical steps when performing or scheduling oil changes.
- Use only 0W-20 synthetic oil that meets API SN and GF-5 specifications, ideally Lexus Genuine Motor Oil or a certified equivalent
- Verify the correct capacity and fill to the recommended level using the dipstick after a warm engine and sufficient idle time
- Ask your technician to reset the maintenance minder after completing the oil service
Sticking to the recommended oil type and interval helps optimize fuel economy, engine performance, and emissions compliance. If you’re unsure about availability of 0W-20 in your region, check with a local Lexus dealership for approved substitutes or regional guidelines.
Summary
For a 2019 Lexus IS 300, the oil of choice is 0W-20 synthetic meeting API SN/GF-5, with about 4.5 quarts required per change, including the filter. Follow the maintenance minder for interval guidance, typically around 10,000 miles under normal conditions, and always use a specification-compliant oil to protect the turbocharged engine and maintain performance.
What type of oil does a 2019 Lexus take?
Since Lexus is the luxury brand of Toyota, new Lexus models need full synthetic Toyota genuine oil. You can put conventional oil in your engine, but we do not recommend it. Most new Lexus models require Toyota Genuine Motor Oil SAE 0W-20, which is a full synthetic motor oil.
What oil should I use for my Lexus IS 300?
Engine Oil
0W-20 (All TEMPS) - 0W-20 is the best choice for good fuel economy and starting in cold weather. If 0W-20 is not available 5W-20 may be used. However, it must be replaced with 0W-20 at the next oil change.
What oil does a 2019 Lexus IS300 take?
Valvoline – Full Synthetic High Mileage 0W-20 Motor Oil, Maximizes Engine Life, 5 Quart (Part No. 881168)
What is the best oil for high mileage IS 300?
Pennzoil Platinum High Mileage Full Synthetic 5W-30 is designed to maximize engine protection and is formulated to help stop leaks in engines with more than 75,000 miles.