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Gearbox Oil Cooler


Ivecovanman
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Guest Dave Elcome

I was told by an automatic gearbox specialist, that the cooler you can keep the auto box the longer it will last, so yes I would recomend fitting an aditional oil cooler.

 

I'm now certain that lots of folk will leap in saying that they don't have aditional coolers fitted, and have towed without problem, but I stick by what I say, the guy that gave me this info is an absolute expert on transmissions full stop, and is not the type to over dramatise things, AND he doesn't sell coolers either.

 

The one I fitted to a Mercedes auto was from Kenlowe, look HERE

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I was told by an automatic gearbox specialist, that the cooler you can keep the auto box the longer it will last, so yes I would recomend fitting an aditional oil cooler.

 

 

From a US site re transmission oil temperatures:-

Trans Approximate

Oil Temp Life Expectancy

175°F 100,000 miles

195°F 50,000 miles

212°F 25,000 miles

235°F 12,000 miles

255°F 6,250 miles

275°F 3,000 miles

295°F 1,500 miles

315°F 750 miles

Better be safe than "I wish I'd spent £100. 00 or so"

 

An oil temperature gauge is a good addition also both for engine oil and the transmission oil. It would amaze you the difference on both gauges between towing and running solo

Edited by greenplum
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Surely it will depend on what the car has been built to do!

 

A Sedona is built as a 'people carrier' so towing is probably an extra and may therefore require additional cooling - ask Kia UK AND get it it in writing.

 

The Kia Sorento on the other hand is built with towing in mind as well as strenuous cross country four wheel drive work so the car should be OK as built.

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Surely it will depend on what the car has been built to do!

 

A Sedona is built as a 'people carrier' so towing is probably an extra and may therefore require additional cooling - ask Kia UK AND get it it in writing.

 

The Kia Sorento on the other hand is built with towing in mind as well as strenuous cross country four wheel drive work so the car should be OK as built.

 

 

I tend to agree with Ted on this ;);)

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I tend to agree with Ted on this ;);)

 

Jeep Grand Cherokee 4. 0 - Well on top of the job but as I said in my last post it's surprising the difference when towing in temperature of the auto box oil and engine oil without the extra coolers (and an extra capacity auto sump). The car comes standard with a trailer pack which includes one cooler but I have fitted both an extra engine oil and an additional auto box oil cooler as well as the deep sump. The extra coolers are not used solo but are switched in manually when towing and the temps are actually a shade below what is indicated when not towing.

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