The 2008 Scion xB uses a 2.4-liter four-cylinder engine (the 2AZ-FE) that requires SAE 5W-30 engine oil. The engine holds about 4.7 quarts (roughly 4.4–4.5 liters) with a full filter change. Oil should meet API SN or newer specifications and ILSAC GF-5 or newer. Synthetic or synthetic-blend oil is recommended for optimal protection, though conventional 5W-30 is acceptable if synthetic isn’t available. Always verify with the owner’s manual or a qualified tech for your climate and driving conditions.
Recommended oil for the 2008 Scion xB
To ensure proper lubrication and engine longevity, the following guidelines summarize the oil specifications for the xB's 2.4L engine.
- Viscosity: 5W-30
- Oil type: Synthetic or synthetic-blend preferred; conventional 5W-30 is acceptable if needed
- Certifications: API SN or newer; ILSAC GF-5 or newer
- Capacity: About 4.7 quarts (4.4–4.5 L) with a full oil filter change
- Change interval: Follow the owner’s manual; typical guidance is around 5,000 miles with conventional oil and 7,500–10,000 miles with synthetic, depending on driving conditions
Always check the dipstick and the vehicle’s maintenance schedule, since frequent short trips, extreme temperatures, or heavy loads can require more frequent changes.
Notes for climate and driving conditions
While 5W-30 is the standard grade for most temperatures, extreme cold or hot climates and aggressive driving can influence oil choice and change frequency. When in doubt, consult the owner’s manual or a Toyota technician to tailor the oil and maintenance plan to your specific conditions.
Summary: For a 2008 Scion xB, use 5W-30 engine oil that meets API SN or newer and ILSAC GF-5, in about 4.7 quarts with the filter. Synthetic or synthetic-blend oil is recommended, with change intervals guided by the owner’s manual and driving conditions.