blakes
Red Skull Member
My GF has a 2004 Toyota Matrix with auto tranny and 220k miles. Tranny fluid looks and smells ok. It runs and shifts fine.
Our drive home from town consists of about 20 miles of a canyon highway mostly uphill and then about 6 miles of fairly steep dirt road. The Torque app shows the tranny fluid gets to about 250 degrees by the time we make it all the way up the mountain. If we are driving around town the fluid stays at about 150 degrees or so. The tranny cooler is in the radiator and the electric fan works fine. The coolant temp gets to about 210 or so.
Is 250 degree Fahrenheit too hot for ATF?
Our drive home from town consists of about 20 miles of a canyon highway mostly uphill and then about 6 miles of fairly steep dirt road. The Torque app shows the tranny fluid gets to about 250 degrees by the time we make it all the way up the mountain. If we are driving around town the fluid stays at about 150 degrees or so. The tranny cooler is in the radiator and the electric fan works fine. The coolant temp gets to about 210 or so.
Is 250 degree Fahrenheit too hot for ATF?