Liqui Moly Touring High Tech 15w40 oil is our choice for air-cooled 911s. This standard oil is designed for extreme condition diesel and gasoline service and provides proper engine protection, lubrication and cooling without the need for a Zinc additive. Lüfteknic uses Liqui Moly 15w40 Touring High Tech oil in all air-cooled 911s serviced in our facility in Richmond, Virginia. Lüfteknic has seen reduced engine noise, smoother running and improved miles per gallon just from switching to Liqui Moly oils. A superb quality 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. A high additive content guarantees optimum lubrication under all running conditions. 

Liqui Moly MoS2 is an exceptional product. Highly recommended for all Porsche vehicles, regardless of year or use. It offers excellent wear reduction under normal engine operation, but especially in extreme conditions such as low / no oil pressure situations (cold start / oil loss) and high temperature and high load situations such as track day use and daily commute stop and go driving. We use MoS2 in all our modern "shop" and employee vehicles, including our 991 GT3. We use and recommend Mahle oil filters almost exclusively. Mahle is the OEM supplier to Porsche for most applications, and quality of construction, filtration and durability are unmatched in our experience.

Along with quality engine oil, a proper premium quality oil filter often makes the difference between the engines that last and those that don't. If you're on our site we're probably already preaching to the converted, but if you're unsure, don't be: Use a quality Mahle oil filter in your Porsche, whenever possible.