perfect temp for tranny fluid
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Joined: Jan 2004
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From: Tinley Park IL
perfect temp for tranny fluid
Finally got my baby back from my local speed shop, and it had to go under reconstructive tranny work. I crushed my original tranny. Anyway I had to get a new tranny cooler because the original one that I had logged only about 200 miles on would not permit a full tranny flush. So what is the best operating temp that the tranny cooler should be around? The highest I have seen it so far was 207 degrees, under full throttle, otherwise its about 194-197. Thanks for any help.
Melting Slicks
Joined: May 2005
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From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
Originally Posted by Apollyon
Finally got my baby back from my local speed shop, and it had to go under reconstructive tranny work. I crushed my original tranny. Anyway I had to get a new tranny cooler because the original one that I had logged only about 200 miles on would not permit a full tranny flush. So what is the best operating temp that the tranny cooler should be around? The highest I have seen it so far was 207 degrees, under full throttle, otherwise its about 194-197. Thanks for any help.
Was at 208 - 214 without the cooler. 
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Joined: Oct 2000
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From: Monticello MN
Mine, with a cooler, runs between about 158 to 185-190 degrees, dependent on outside air temp, and whether i'm on the freeway or in town. In the nineties, I run toward the upper end of the range I stated. It takes a long time to get there however. In the 80's, I run toward the lower end of the range on the freeway. As there's no transmission fluid thermostat to control this, I assume others are somewhat similar in their variances. However, a lower coolant thermostat may lower the temps as the fluid still passes through the radiator core cooler. I'm running a stock thermostat, but am planning on changing. It's hard to pin down a specific number as there are so many variables that can affect the transmission fluid temperature. What I can say is, whenever I've checked with someone I'm cruising with, under identical conditions, I'm ALWAYS running quite a bit cooler. I'm using a Hayden cooler.
Ed
Ed
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From: Tinley Park IL
Thanks guys, in IL it was in the 90's yesterday and I just wanted to make sure that my temps were around everyone that might have a tranny cooler. Today it was a little cooler out with more of a breeze and it stayed steadily between 180-187 degrees.
