I should update...
Toyota Prius, 138,800 miles -
OUT : Mobil Super Synthetic 5w20 with Peak Syn 5w20, Puro Classic
IN : Havoline Deposit Shield 5w20 Dino, Puro Classic
Hyundai, 80,653 miles -
Originally had changed from Mobil Super 5k to Castrol Syntec 5w50 but decided it was too heavy for my use.
OUT : Castrol Syntec 5w50 @ 12 miles, stored into Max Life bottles and labeled
IN : Valvoline Max Life Synthetic, P1 filter