To find out how many liters of engine oil your Rover 45 needs, I recommend checking:
* Your owner's manual: This is the most reliable source of information.
* The dipstick: The dipstick in your engine will have markings indicating the minimum and maximum oil levels.
* A trusted mechanic or service center: They can provide accurate information based on your vehicle's year, model, and engine type.
Please note: The oil capacity can vary depending on the engine size and other factors.