Lately My fave is Valvoline because of the rebates. However just changed oil today in my daughters VW Beetle with 1.8 turbo and put in Castrol Edge with Syntec due to heat and sludge issues. And the fact that I may not see it again for 6 months. But my stock of NextGen is full and will need to be used in the next 3 years or so. LOL
