Approximately 4.5 quarts of engine oil are required for a full refill in the 2012 Scion xB, including the new oil filter.
The 2012 xB uses a 2.4-liter four-cylinder engine. This capacity is the amount needed to bring the oil level to the full mark on the dipstick after an oil change with a new filter. The commonly recommended viscosity for this engine is 5W-30, and many owners opt for synthetic oil for extra protection. Always confirm exact specifications in the owner’s manual or with a trusted service source.
Official capacity and practical guidance
Before listing the capacity and how to use it, here are the essential facts you should know about capacity and measurement.
- Oil capacity (with filter): about 4.5 quarts (roughly 4.3–4.7 quarts depending on filter size and draining efficiency).
- Recommended oil: typically SAE 5W-30; synthetic oils are commonly used for longevity and easier cold starts.
- How to fill: add gradually, run the engine briefly, recheck the level, and top up to the full mark on the dipstick.
Bottom line: Plan on about 4.5 quarts of oil to complete a standard oil change, and always verify the level with the dipstick after the engine settles.
Additional maintenance notes
Use the correct oil filter and replace it during the change. If needed, replace the drain plug washer and dispose of used oil properly. In extreme climates, consult the owner’s manual for any viscosity or interval adjustments.
Summary
The 2012 Scion xB's 2.4-liter engine requires roughly 4.5 quarts of engine oil with the filter included for a full refill. Use 5W-30 oil (synthetic is often preferred) and verify the final fill by checking the dipstick after the oil has settled.


