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What type of oil for 2014 Lexus RX 350?

The recommended oil for the 2014 Lexus RX 350 is 0W-20 synthetic motor oil. This viscosity provides optimal cold-start protection and efficiency for the 3.5L V6 engine used in this model year.


In this article, we explore the official specification, practical guidance for choosing the right oil, and common questions about maintenance for the 2014 RX 350.


Official oil specification for the 2014 RX 350


Below are the key specifications you should follow, as listed in the owner's manual and general Lexus/Toyota guidance for this engine.



  • Viscosity: 0W-20 (preferred)

  • Oil type: Full synthetic motor oil

  • Certification: API SN/Resource Conserving; ILSAC GF-5 compliant

  • Capacity (with filter): approximately 6 quarts (varies slightly by engine and drainage procedure)

  • Oil change interval: typically every 5,000 miles with conventional oil; with full synthetic, intervals may extend toward 7,500–10,000 miles depending on driving conditions and maintenance plan


Sticking to the official spec helps ensure engine protection, proper fuel economy, and warranty compliance. If you’re unsure, consult the owner’s manual or a Lexus service advisor for exact numbers for your vehicle.


Practical considerations when buying and changing oil


Before selecting oil products, consider how you drive and what your local climate demands. The following guidance helps ensure you stay within the recommended spec.



  • Choose a 0W-20 full synthetic oil that meets API SN/Resource Conserving and ILSAC GF-5 standards.

  • Use a high-quality oil filter approved for your RX 350; a genuine Lexus filter is a common recommendation among owners and dealers.

  • Confirm the oil capacity and keep an eye on the dipstick after a change to verify the correct level.

  • Follow the maintenance schedule in the owner’s manual to determine the appropriate oil-change interval for your driving conditions (city, highway, climate, and load).


In practice, choosing the right oil and staying on schedule helps preserve engine performance and longevity. If you operate in extreme temperatures or frequently tow or carry heavy loads, consulting a Lexus technician can provide personalized interval recommendations.


Summary of the key takeaway


For the 2014 Lexus RX 350, the standard oil recommendation is 0W-20 synthetic motor oil, API SN/Resource Conserving with ILSAC GF-5 compliance, roughly 6 quarts per change, and oil-change intervals aligned with synthetic oil guidance and driving conditions. Always refer to the owner’s manual or a Lexus service advisor for model-specific details and local guidance.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.