Over many years have stayed with OEM fluids for coolant and transmission fluids.
My trusted Lexus was involved in an accident and bought it back from insurance (its true value was shocking).
For a change (with the value so low nothing to loose) my 60K service was up and swiched out OEM fluid with Maxlife.
I must say the transmission has never been happier, the shifts are like butter and even got 1MPG more.
Clearly as others have said its a mystery soup and works perfect for my Toyo transmission - made me a believer of the fluid.
My trusted Lexus was involved in an accident and bought it back from insurance (its true value was shocking).
For a change (with the value so low nothing to loose) my 60K service was up and swiched out OEM fluid with Maxlife.
I must say the transmission has never been happier, the shifts are like butter and even got 1MPG more.
Clearly as others have said its a mystery soup and works perfect for my Toyo transmission - made me a believer of the fluid.