The 2007 Scion xB uses SAE 5W-30 engine oil, with a crankcase capacity of about 4.5 quarts including a new filter. You can use conventional or full-synthetic oil, as long as it meets the vehicle’s API service requirements and carries an Energy Conserving label. Always verify the exact specification in the owner's manual or with a Toyota/Scion dealer.
Oil type and viscosity
The xB’s 2.4-liter 2AZ-FE engine is designed for 5W-30 oil in most climates. This viscosity provides a balance of cold-start protection and high-temperature performance. You may choose conventional, synthetic, or a synthetic blend, but ensure the oil meets the required API service specification and is labeled Energy Conserving.
Recommended oil options
Below are common options that meet the Scion xB’s requirements. Choose based on climate, budget, and preference for synthetic or conventional oil.
- Conventional 5W-30 engine oil
- Synthetic 5W-30 engine oil
- Synthetic blend 5W-30 engine oil
All approved options should meet the API service requirements and carry the Energy Conserving label. Refer to the owner's manual for any climate-specific notes.
Oil capacity and change intervals
The oil capacity for the 2007 xB, including the filter, is about 4.5 quarts. To maintain optimal engine protection, follow the change intervals recommended for your oil type and driving conditions.
Typical change intervals by oil type:
- Conventional oil: roughly every 3,000–5,000 miles (about 4,800–8,000 km) or every 3–6 months, whichever comes first.
- Synthetic or synthetic blend: roughly every 7,500–10,000 miles (about 12,000–16,000 km) or every 6–12 months, depending on conditions. In severe driving conditions (extreme temperatures, frequent short trips, heavy loads), shorten intervals accordingly.
Always verify with the owner's manual and follow any maintenance minder or dealer recommendations. Regular oil level checks are important to catch leaks or consumption early.
Practical tips for maintenance
When changing oil, replace the oil filter and use a new drain plug washer if applicable. Pour slowly to avoid overfilling, and check the level with the dipstick after a few minutes of idle and with the engine off. Dispose of used oil at an approved recycling facility.
Summary
The 2007 Scion xB generally calls for 5W-30 oil, with a capacity of about 4.5 quarts including the filter. You can choose conventional, synthetic, or synthetic-blend 5W-30 oil, as long as it meets API service requirements and is Energy Conserving. Follow the owner's manual for exact intervals, and adjust based on your driving conditions. Regular checks and timely changes protect engine longevity.


