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what do most of the Ally's run on a hot day pushing 75mph or so? Mine was around 200 and some oil (filled too much) out the vent. The past owner had about 2 quarts too much in it. What fluid should I run in it? It had Amsoil but the dealer said it calls for Dextron III. Thanks for any help. Please email me with fluid suggestions asap, changing tomorrow. ([email protected])
 

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I think if the dealer says thats what it takes that is probably it, I think 180-200 is a good range, try not to run auto tranny with to much oil to much it will burn them up after awhile
 

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Well, I don't have much experience with a hot day up here in Alaska, but when I drive from faibanks to anchorage in the summer (about 70-80 degrees out), mine usually runs about 140-150 degree range. If I am in the city or pulling hills a lot, I will see 180-210. If your torque converter is locked up, it should settle at a decent temp until you get back in the city. As far as fluid, anything that is dextron III rated or higher is good. I am running Mobil 1 sythetic in mine with no problems. A lot of other guys use transynd (allision synthetic fluid). I would just make sure you change your spin-on filter between 5000-10000 miles. It is easy to do and cheap insurance on your tranny.
 

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Over filling is not good because when the fluid level gets too high the planetary gears are submerged in fluid and they begin to churn the fluid causing bubbles ( airation, too much air in the lubricating fluid ). We need pure fluid in the trans without air. Air does not cool or lubricate trans internaly at all.
 
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