I have used PP/PU almost since 10k in a 2012 Hyundai Accent with now 131k. Transmission flushed every 50k-60k and Coolant every 100k,Brake Fluid 80k and I still have a tiny seep from rear main seal. Been using MOS and Motor Protect LM and have had no luck to completely seal it at RMS. Will Valvoline Maxlife handle GDi as far as deposits and dilution? I love PUP/PP, but I have to make this leak stop. Am I better to keep using PUP 5w30 with MOS/Motor Protect and deal with the small seep or switch to VML Syn and hope it seals it up. VML Syn doesnt have hto6 spec nor A5, so will my mpg decrease also? Any and all thoughts and ideas would be appreciated. Thanks again