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What kind of oil does a Toyota Scion use?

A modern Scion typically uses a low-viscosity synthetic oil such as 0W-20, but the exact specification depends on the model and year. Always verify with the owner's manual or the oil cap under your hood to be sure.


Scion, the former Toyota sub-brand known for models like the xA, xB, tC, and FR-S, designed its engines to run on specific oil grades and viscosities to balance fuel efficiency, emissions, and engine longevity. Because requirements vary across generations and engine codes, the precise oil type for any given vehicle is not universal. The most reliable source remains the vehicle’s official documentation and labeling found on the engine.


Oil basics for Scion vehicles


Below are the common patterns you’ll encounter across the Scion lineup, with the caveat that exact specs can differ by year and engine code.



  • 0W-20 full synthetic is the default or highly preferred viscosity for most modern Scion engines. It supports fuel efficiency and low emissions and is widely recommended for newer vehicles in the lineup.

  • 5W-30 or 5W-20 may appear on older Scion engines or in specific climates. Some early-generation Scion models used these grades; always confirm the exact specification for your year and engine.

  • Synthetic or synthetic-blend oils are commonly recommended to meet the strict viscosity windows and emission standards, though some engines may tolerate a conventional oil if it meets the required specification. Always verify the exact grade and certification (eg, ILSAC GF-5/GF-6, API service) for your engine.


Conclusion: The right oil for a Scion is not one-size-fits-all. The best practice is to follow the official specification for your particular model and year, rather than relying on a generic recommendation.


Synthetic vs conventional oil


Most Scion engines benefit from synthetic or synthetic-blend oils because of tighter tolerances, improved flow at cold temperatures, and better protection under modern emissions systems. Conventional oil may be acceptable only if it meets the same viscosity and certification requirements listed in your manual. When in doubt, opt for a synthetic or synthetic-blend that meets the approved specification.


How to confirm the exact oil for your Scion


The following steps help you lock down the precise oil type and grade for your vehicle.



  • Consult the owner's manual or the official Toyota/Scion service site for your model and year. Engine codes and recommended viscosities are specified there.

  • Inspect the engine oil filler cap. Some caps show the recommended viscosity (for example, 0W-20) and sometimes even the API/ILSAC specification.

  • Check under-hood labels or the maintenance/warranty sticker for the recommended oil grade and interval. These often reflect the current recommended specification.

  • If you don’t have the manual handy, provide your VIN at a Toyota/Scion dealer or trusted service center to confirm the exact specification for your engine.


Conclusion: For precise accuracy, verify the model-year-specific recommendation from official sources or a dealership. That ensures compatibility with emissions controls, fuel economy targets, and engine wear protection.


Oil capacity and other considerations


Beyond the viscosity, note the engine oil capacity and the type of oil the manufacturer calls for (synthetic vs conventional). Overfilling or underfilling can affect engine performance and longevity. If you’re unsure, a quick oil change at a professional shop can ensure the correct grade, quantity, and filter are used and that the system is properly filled and reset.


Summary


There isn’t a single oil that fits every Scion. The prevailing guidance for contemporary models is 0W-20 synthetic, but some older engines may require 5W-30 or 5W-20. Always confirm the exact specification by consulting the owner’s manual, checking the oil cap, or asking a Toyota/Scion dealer with your vehicle’s year and engine code. Using the correct oil helps maintain efficiency, reduce emissions, and protect the engine over time.

Can I use 5W30 instead of 5W20 in my Toyota?


You should not substitute 5W-20 for 5W-30 in a Toyota unless the owner's manual explicitly allows it, as using the wrong oil can lead to less high-temperature protection and potentially damage the engine over time. Sticking to the manufacturer's recommended oil weight is crucial because it is engineered for specific engine tolerances, and using a different viscosity can impact performance and longevity. 
Potential issues with using 5W-20 instead of 5W-30 

  • Reduced high-temperature protection: 5W-30 oil is thicker at normal operating temperatures than 5W-20 oil. Using 5W-20 can lead to increased wear, especially in engines that run hot or are under heavy load. 
  • Engine damage: The engine is designed with specific tolerances that are matched to the oil's viscosity. Using a thinner oil can compromise lubrication, potentially leading to more significant internal engine wear over time. 
  • Not suitable for all engines: Some older Toyota engines (like the 2JZ, 2VZ, or 3VZ) and certain Lexus engines are not compatible with 5W-20 oil and require 5W-30 or another specified weight. 

When it might be acceptable
  • If your owner's manual says so: Some newer Toyota models may recommend 0W-20 or 5W-20, and in these cases, using 5W-20 is appropriate. Always check the owner's manual to confirm the correct oil for your specific vehicle.
  • Temporary use: If you accidentally use 5W-20 for a short period, it is unlikely to cause immediate, catastrophic failure, especially in a modern engine. However, it is best to switch to the correct 5W-30 oil at your next oil change to prevent long-term issues. 

What to do
  1. Check your owner's manual: The most important step is to confirm the oil weight recommended by the manufacturer for your specific vehicle. 
  2. Use the recommended oil: To ensure proper lubrication and protection, always use the oil viscosity that is specified in your owner's manual. 
  3. If you used the wrong oil by mistake: If you accidentally used 5W-20, it is best to have the oil changed to the correct 5W-30 as soon as possible to avoid potential damage. 



What oil does a 2009 Scion take?


Oil Grade: API*
0W-20, 5W-20 (All TEMPS) - SAE 5W-20 or 0W-20 engine oil may be used. SAE 0W-20 is the best choice for good fuel economy and starting in cold weather. Capacity: 4.5 quarts (with filter).



What oil does a Toyota Scion take?


Mobil 1 – Extended Performance 5W-20 Full Synthetic Motor Oil, Prevents Leaks, 5 Quart (Part No. 15020)



What kind of oil does a 2005 Scion take?


The 2005 Scion requires 5W-30 motor oil. It's recommended to use a full synthetic or a synthetic blend, and the engine capacity is approximately 4 quarts (with a filter change). Always check the oil level on the dipstick after refilling.
 

  • Oil Type: 5W-30 
  • Engine Capacity: Approximately 4 quarts with a filter change 
  • Recommendation: Synthetic or synthetic blend oil is suitable for this model. 
  • Action: After adding the new oil, run the engine for a short time and then check the dipstick to ensure the level is within the correct range. 


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.