Shell Helix Ultra Professional 5W30 is a high-performance engine oil designed to provide excellent protection and cleaning for modern gasoline and diesel engines. This 5-liter 5L jug is suitable for use in a range of vehicles, including those with advanced exhaust emission reduction systems and turbocharged engines. It meets the ACEA C4 specification. This engine oil is formulated with Shell's unique PurePlus technology, which converts natural gas into a crystal-clear base oil with virtually none of the impurities found in crude oil. This provides enhanced protection and improved fuel economy, helping to extend the life of your engine and reduce your carbon footprint.