Amsoil 0w30 with an Amsoil or Wix oil filter, no additives.
STP Complete Fuel System Cleaner once every 6 months.
When I can't get Amsoil I'll use Mobil 1 or Royal Purple. I run synthetics in my engine, transmission, and power steering unit. I have 2 cars with over 150,000 miles on them, been...