Here at Panzer Performance you will see mainly Liqui-Moly oil on our shelves. Many people never put much thought into the oil they put in their vehicles. Nowadays you can buy oil almost anywhere and get an oil change while shopping at Walmart. The facts are oil has come a very long way from where it started. Back when foaming was concern in the 60s Castrol was a gold standard since it didn't foam like its competitors. Now the vehicle manufacturers set the standards. With the engine tolerances, operating conditions, and extended drain intervals , requirements are more intense than ever. The main two things we stress at Panzer are using the correct oil that meets or exceeds manufacturer's spec and to check your oil level every thousand miles. That may sound excessive but considering that oil is literally the thing that keeps everything moving. When you think about it like that would you want to run a subpar oil? So how important is oil? if you don't have enough or sometimes even the wrong type it can be a costly lesson to learn. At Panzer Performance we have preached the importance of quality oil for years and we personally use Liqui Moly in our own vehicles and service many vehicles with it.