I looked all over but couldn't differentiate between Liqui Moly's Leichltlauf High Tech, Spect Tec LL, and Molygen? For daily driving N52 motor with 70k miles, what's best for wear protection? I understand that Molygen is really popular and the UV light is neat but what are some other differences between these three types?
I recommend the Leichltlauf oil in this kit, it would be the best suited for your BMW with the N52. The Special Tec LL will provide similar wear protection but the Leichltlauf High Tech is the more popular choice. I have used it personally and continue to use it.