I have searched but I'm not sure what to search for exactly to get this question answered.
I have two cars that I'm considering LC20 for:
2001 VW Passat, 2.8L V6, ~6 quart oil capacity, 84k miles, 20k miles annually, 5k OCI with GC, M1 0w-40, or Syntec 5w-40. Car runs fine very little if any...