1L container Liqui Moly Leichtlauf High Tech synthetic 5w40 engine oil. 

The best all-around modern synthetic engine oil we have used to date. Nearly every modern Porsche serviced by Lüfteknic in our facility in Richmond, Virginia leaves with Leichtlauf High Tech 5w40 in the oil tank or sump. Lüfteknic has seen reduced engine noise, smoother running and improved miles per gallon just from switching to Liqui Moly oils. A superb quality synthetic engine oil, made in Germany. Liqui Moly has complete control of their supply chain, from oil wells to refinement, and is one of the few major lubricant manufacturers to also produce their own additive packages; the ingredients that give a particular oil its unique properties with regards to lubricity, protection, emissions, and vehicle specifications. Due to outstanding protection against engine wear, service intervals of 5,000-7,500 miles or 1 year are possible, depending on vehicle use. 

Works exceptionally well with Liqui Moly MoS2 oil additive, for complete engine protection. A highly recommended combination, especially for vehicles that see track time or significant stop and go traffic use.