Why are cold flow properties so extremely important for transmission and hydraulic fluids? If oil is too thick at cold temperatures, your machine may not start properly – or at all for that matter.
This puts unnecessary stress other parts like the starter and battery. Even if your machine does start, components in the transmission and hydraulic system will be rotating oil that is thick. Thick oil not only wastes fuel but, even worse, it creates increased load and causes poor hydraulic function.