I've seen some people put the temp sensor for there gauge in the pan, test port, and cooler line. Everyone claims there location to be the best. Also I've notice the "average temp" is different for each location, same with the time it take for the temps to rise.
Pan seems to get the lowest temps and slowest reactions in temp temps. I've seen around 130* average, and you can go up a huge hill with out only 10* change in temps and sitting in traffic is hardly noticeable.
The test port (most common and easiest install) is about 20*warmer on average from what I've seen, and temps react faster, like you can see it 30* jump on a large hill and it will slowly climb from sitting in traffic.
Now the cooler line looks like shows the highest average at about 170* after everything's all warmed up on a nice hot day. And u can see temps start to jump as soon as u put it in gear and watch them drop the instant it gose into lock up vice versa.
Now most places I read, if the fluid gets over 240 you gona kill you trans asap. Now seeing these temp differences shows a big point! One running there temp sensor in the oil pan seeing 200* could mean 250*+ on the cooler line. Makes me think where and the recommendations we all read about based off of.
Also I think we should all put our average temps up and sensor location high temp seen and cooler set up to help prove what I'm saying determine the true best set up (location and coolers) for our trucks.
So here we go.
Average 170 on hot days (90*)
Sensor location on the cooler line
Highest I've seen is 230 going up a long slow (in 2nd the whole climb) STEEP dirt road empty. I got a derale aux cooler fan is set to turn on at 185* and a small 12" x12" Hayden cooler both are rated around 30k gcvw I tore the leaking stock cooler out, bts 4r100, synthetic fluid. pic is of the derale aux cooler, I'm waiting on a tru cool cooler to replace the tiny hyden cooler it's besides the derale but is much thiner so it can't been seen to well
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