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Does a Lexus need synthetic oil?

Yes, Lexus vehicles generally require the use of synthetic oil. Synthetic oil is the recommended oil type for most Lexus models, as it provides superior performance and protection for the engine compared to conventional mineral-based oils.


Lexus Synthetic Oil Requirements


Lexus, a luxury vehicle brand owned by Toyota, specifies the use of synthetic oil in the majority of its models. This is because synthetic oils are engineered to offer several benefits over conventional oils, including:



  • Improved resistance to thermal breakdown and oxidation, allowing for longer oil change intervals

  • Enhanced lubrication and reduced friction, leading to better fuel efficiency

  • Superior protection against wear and deposits, extending engine life

  • Improved performance in extreme temperatures, both hot and cold


Lexus recommends using a high-quality synthetic oil that meets the manufacturer's specifications, typically 0W-20 or 5W-30 viscosity grades. The specific oil requirements can vary by model, so it's important to consult the owner's manual or a Lexus dealer to determine the correct oil type and change interval for your vehicle.


Benefits of Using Synthetic Oil in a Lexus


Using the recommended synthetic oil in a Lexus provides several advantages:



  • Improved Engine Protection: Synthetic oils are more resistant to thermal breakdown and can better withstand the high temperatures and pressures inside a Lexus engine, reducing the risk of wear and tear.

  • Longer Oil Change Intervals: Synthetic oils typically last longer than conventional oils, allowing for extended oil change intervals as specified by Lexus, which can save time and money.

  • Enhanced Fuel Efficiency: The reduced friction and improved lubrication properties of synthetic oils can contribute to slightly better fuel economy in a Lexus.

  • Smoother Engine Performance: Synthetic oils help maintain the engine's optimal performance, resulting in a smoother, more responsive driving experience.


While Lexus does not strictly require the use of synthetic oil, it is the recommended oil type for the majority of Lexus models. Using the proper synthetic oil as specified by the manufacturer can help ensure the longevity and optimal performance of your Lexus vehicle.

Why is an oil change for a Lexus so expensive?


The higher cost of a Lexus oil change can be attributed to several factors. These include the use of synthetic oil, higher labor costs at a dealership, and the inclusion of additional services and inspections.



Why is synthetic oil not recommended?


Synthetics may be more prone to additives precipitation during cold storage conditions. This stratifies certain additives which can potentially lead to their complete separation from the oil. Multi-grade motor oils using synthetics may exhibit slightly less fuel economy at highway speeds compared to mineral oil.



Do I actually need synthetic oil?


Any motor oil will do the job, but some types are better than others under certain conditions. “The big difference is that synthetic oil tends to last longer than conventional oil between changes—up to 10,000 miles or more,” Ibbotson says.



Can I switch back to regular oil after using synthetic?


Myth: Once you switch to synthetic oil, you can never switch back. This is one of the most persistent myths about synthetic oil—and completely untrue. You can switch back and forth at any time. In fact, synthetic blends are simply a mixture of synthetic and conventional oils.



What oil is best for Lexus?


Lexus recommends ILSAC GF-5 0W-20 full synthetic for engine oil refills, but the owners manual does not specify if this is also appropriate to replace the oil consumed by the engine during normal use.



What happens if you put regular oil and not synthetic?


Ordinary oil can literally burn to form sludge which will block the oil path and eventually destroy an engine. If someone has used ordinary oil when the unsuspecting owner uses the correct oil it can loosen the sludge and block oil ways. Byebye engine!



What car needs full synthetic oil?


Synthetic oil used to be something only performance cars needed, but not anymore. Now it's the manufacturer-recommended engine lubricant in many mainstream vehicles, such as the Subaru Forester and the Toyota Camry.



How often do you change synthetic oil in a Lexus?


Lexus vehicles in which 0w-20 synthetic oil is required have been approved for extended oil change intervals of 10,000-miles/12-months.



Do Lexus require synthetic oil?


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.



Why is Lexus oil change so expensive?


The higher cost of a Lexus oil change can be attributed to several factors. These include the use of synthetic oil, higher labor costs at a dealership, and the inclusion of additional services and inspections.


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.