I have two types of ATF fluids in front of me..."Castrol Import Multi-Vehicle ATF for Toyota" and "Mobil 1 Syntetic ATF"...I obviously most likely should go with Castrol since it does say its for Toyota, but it bugs me that id does not say "Syntetic" on it. Which makes me think, wouldn't Mobil 1 be a better quality lubricant for the trans? Just want to get it straight...