Quote:
Originally Posted by Joe M 2012 2SS
I daily my car with a 3200 stall converter and a trans cooler. Cooler is ALWAYS better for transmissions. Heat is the enemy. 150-165 is terrific during the summer on the highway, it wont run much cooler in the winter (15-20 degrees), which is still excellent.
The temps will be lower cruising on the highway vs. stop & go driving in the city. My tranny cooler keeps mine below 185 in the city during the summer, and 165-170 on the highway. About 15 degrees cooler during the winter. Mine will be hotter than yours because of the slip in my aftermarket converter.
Don't believe people who tell you it wont help your transmission last longer, cooler always lives longer. Transmission fluid doesn't freeze until it reaches -60*F, so unless you're moving to the North Pole, you're good.
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Did you bypass the radiator?