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Does Honda require synthetic oil?

In most cases, Honda does not strictly require synthetic oil, but modern engines are designed to run best with synthetic or synthetic-blend 0W-20 oil. Conventional oil that meets the car’s viscosity and API/ILSAC specs can be used if synthetic is not required or unavailable.


To understand what this means for your particular vehicle, it helps to review the owner’s manual, know your engine’s recommended viscosity, and consider climate and driving conditions. This article explains the nuance and offers practical guidance for choosing oil.


What the owner's manual says


Most modern Honda models specify 0W-20 oil as the standard, with API SN or higher and ILSAC GF-5 or GF-6 certification. Some older models or engines in certain climates may list alternatives such as 5W-20 or 5W-30. The key point is to use oil that meets the manual’s viscosity and certification requirements and to adhere to the recommended change intervals.


Oil options for Honda engines


Here are the main oil types you might consider for a Honda engine, along with their trade-offs:



  • Conventional mineral oil: Meets API/ILSAC specs and the correct viscosity, but offers less protection in extreme temperatures or high-stress conditions and may require more frequent changes.

  • Synthetic blend: A mixture of conventional and synthetic oils that provides better protection than conventional at a lower cost than full synthetic; a common middle-ground option.

  • Full synthetic: Superior protection and performance, especially in extreme temperatures or under heavy loads; many modern Hondas are designed to run best with full synthetic 0W-20.


Choosing the right oil depends on your model, climate, and driving habits. Always verify that the oil meets the API service category and the viscosity specified in your manual.


Model-specific considerations


Some engines or markets may permit alternative viscosities (for example, 5W-30) due to climate or emissions requirements. Always confirm with your owner’s manual or a Honda dealer for your exact vehicle.


Viscosity and certification standards


Honda’s guidance centers on a 0W-20 viscosity for most newer engines, with the requirement that the oil meets ILSAC GF-5 or GF-6 and API SN or higher. The distinction between synthetic and conventional is about oil type, not a hard requirement, as long as the oil adheres to the specified viscosity and standard.


Maintenance implications and service intervals


Synthetic oils often support longer drain intervals due to better oxidation resistance, but Honda’s maintenance minder or manual may still call for oil changes at certain intervals based on driving conditions. Severe driving conditions can shorten these intervals, so follow the manual or your dealer’s guidance in those cases.


Summary


Bottom line: Honda does not categorically require synthetic oil, but modern engines are designed to run optimally on 0W-20 oil, typically in full synthetic or synthetic-blend form. Conventional oil can be used if it meets the specified viscosity and API/ILSAC standards and your manual allows it. Always follow the exact viscosity and certification listed in your vehicle’s owner’s manual and consult your dealer if you’re unsure.

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.