christover1 wrote:
One expert told me warmer temps good for reducing condensation in the fluid.
This is a correct statement. But would refer more to duration that an automatic vehicle is driven. Driving an auto vehicle say to the local deli and back, or a school run doesn't allow the transmission fluid to get hot enough to boil off the condensation. So in these short drives the condensation is frequently washed into the fluid, but not boiled off. This moisture can then emulsify and can cause the fluid the break down. So its not about running the trans cooler to prevent condensation, but getting it up to operating temperature for a good duration to boil it off. This also applies to the engine, and why country kms are usually preferred to city kms when purchasing a vehicle.
Also condensation doesn't require a big temperature difference to form. Ever walked out of your warm house with your sunnies on and they fog up instantly when you go outside on a cold mornings? I've had it happen with the house inside temp guessing around 25C, and outside is around 10C. That's only approximately 15C difference. Yes this is on a much smaller scale, but the principles still apply. I can assure you that the difference of ambient temp and the internal temp of a transmission would be much greater, thus allowing condensation to form.
It frustrates me too when people put up incorrect info, like the Jimny auto temp is measured by engine coolant temp, and doesn't have its own TCM.
At least with the Canada thing, that is actually a true statement, even though it may not fully apply to Australia.
