Hello Oil Gurus, I am looking for advice on what oil brand/viscosity to use on my vehicle. I own a 2009 Volkswagen Jetta 2.0t (Turbo) , now I read the owners manual. 5w-40 is the viscosity recommended along with a VW 502 00 requirement. I have been using Liqui Moly, but I found this website and looking for what the experts here can suggest! My car is a daily driver of 80 highway/20 city driving. Commute about 70 miles a day. 2009 Volkswagen Jetta 2.0t Turbo (gas) 140k Miles Chicago Illinois (cold/hot weather) Thanks!!!