whats the deal with the oils and trannie fluids being advertised as "high
mileage"? Ive always believed the theory that oil additives are useless and
theres nothing better then good old regular oil changes but the difference
between your regular oil additives and these "high mileage" ones is that
they are being sold by what I consider to be reputable companys(valvoline,
castrol). Does anyone know what theyve added to the oil to make it high
mileage? any idea what the pro's/cons of using it is?