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What kind of oil does a Lexus gx460 take?

The GX460 uses SAE 5W-30 full-synthetic engine oil that meets API SN or newer, with a typical capacity of about 6 quarts (including the filter). In normal driving, synthetic oil enables longer change intervals, but you should verify the exact specification for your model year in the owner's manual.


Viscosity and oil type


Understanding the right viscosity and oil type helps protect the GX460’s 4.6L V8 across climates and driving styles. The standard recommendation for most GX460 engines is 5W-30 synthetic oil. The oil should meet modern API standards and, ideally, the ILSAC GF-5 or newer specifications. Some markets may have slight variations, so always cross-check your year and region.



  • Viscosity: 5W-30 (preferred for most climates)

  • Oil type: full synthetic is recommended; conventional oil may be used in a pinch but is not ideal for this engine

  • Specifications: API SN (or newer) and ILSAC GF-5 (or newer); confirm compatibility with Toyota/Lexus approvals


Choosing the correct oil type and meeting the latest API/ILSAC standards helps maintain lubrication quality and engine protection over time.


Oil capacity and change interval


The GX460’s oil system holds roughly 6 quarts of oil when the filter is changed. Change intervals vary based on oil type and driving conditions, with synthetic oil supporting longer intervals and conventional oil requiring more frequent changes. Always refer to the specific schedule for your model year and driving regime.



  • Oil capacity (with filter): approximately 6 quarts (about 5.7–6.4 L, depending on year and filter configuration)

  • Change interval: typically 5,000–7,500 miles with conventional oil; up to 10,000 miles with synthetic under normal driving conditions; severe driving conditions may shorten this interval

  • Maintenance note: replace the oil filter at every oil change


Following the manufacturer’s recommended interval for your oil type helps sustain engine longevity and performance.


Brands and how to source the right oil


When selecting oil, prioritize full synthetic 5W-30 that meets API SN or newer and is approved for Toyota/Lexus engines. You can use reputable brands or OEM-recommended products, and always choose a viscosity compatible with the GX460’s design and your climate.



  • Oil type: high-quality full synthetic 5W-30

  • Standards: API SN or newer; ILSAC GF-5 or newer

  • Brand examples: Toyota/Lexus Genuine Motor Oil, Mobil 1 5W-30, Castrol EDGE 5W-30, Valvoline Advanced Synthetic 5W-30 (any reputable brand meeting the specs)


In practice, any well-regarded brand that satisfies the 5W-30 and API/S restrictions will perform well; consult your dealer for year-specific recommendations if you’re unsure.


Summary


Key takeaways: Use 5W-30 full-synthetic oil that meets API SN or newer and is compatible with Toyota/Lexus engines; plan for about 6 quarts of oil with the filter; follow the owner’s manual for interval guidance (roughly 5,000–10,000 miles depending on oil type and driving conditions); choose a reputable brand and ensure the oil meets the current specifications for your GX460 year and market.

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.