To ensure the engine of your car keeps running smoothly, it is important all engine parts are constantly lubricated. The lubricant used in cars is called engine oil, which is mostly a synthetic oil specially prepared for your Smart. Engine oil needs to be replaced regularly to avoid any damage to your Smart's engine and expensive reparations of course. To find out how often your engine oil needs to be replaced, we recommend you check your manufacturer's maintenance instructions or check your engine oil levels.
Besides the traditional engine oils, today there are Long Life lubricants being marketed which don't need to be replaced as often.
Before buying your engine oil though, it is important you carefully check what oil you need as there are loads of different oils available today. Not all will be suitable for your Smart however.