The manual will specify the:
* Oil viscosity: This is usually expressed as a number like 5W-30 or 10W-40. The viscosity grade is crucial for proper lubrication under varying temperatures.
* Oil type: This will specify whether it should be conventional, synthetic blend, or full synthetic. Again, your owner's manual will dictate this.
Failing to use the correct oil can damage your engine. Don't rely on generic advice; check your owner's manual.