Transmission Oil Cooler - Fiberglass RV
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Old 05-14-2009, 07:39 PM   #1
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Has anyone installed a transmission oil cooler on a Subaru Outback? (Ours is the 6 cylinder automatic). I know a lot of people make blanket statements to install an oil cooler or face certain doom and destruction, but there is also the chance that Subaru thought it through before specifying the tow ratings (which we're below). Our local Subaru dealer, who has been there a very long time, has seldom, if ever, installed one. He's willing, of course, if we come up with an aftermarket one that will work. We've towed our 13' Scamp on several long trips now, and at the recent 60K check, which included a transmission oil change, the oil seemed perfectly fine.

I'm thinking of leaving well enough alone, but I'm curious to know the experiences of others with a similar setup.


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Old 05-16-2009, 09:31 PM   #2
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I'd recommend that you get a transmission oil temperature gauge, then you won't be guessing about whether or not an auxiliary cooler is needed.
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Old 05-16-2009, 09:53 PM   #3
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having just had my transmission rebuilt after 71k miles, I can most assuredly tell you that a cooler is WAY cheaper than a new tranny.

Jeep insists that my towing had nothing to do with the failure that caused the rebuild, but bottom line is.. tranny got too hot, parts burnt and failed (Or they theorize the parts failed and then the tranny got too hot due to the initial sensor failures)... total cost was close to 3k.

All I can say is thank goodness for an extended warranty and little dashboard lights that gave me SOME warning. I can't imagine what would have happened if I was towing and it went totally kaput.

btw, I have a cooler.. the one Jeep put in at the factory.. and even that didn't help.

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Old 05-17-2009, 06:26 AM   #4
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My Escalade came with the factory tow package. It included an add-on transmission cooler.

My advise is to never tow without one.

No 'not an Escalade', just the add-on transmissioin cooler.

CD and Joyce Smith - Lily, Violet, and Rose
1999 Casita 17' SD - "The Little Egg"
2007 Escalade - 6.2L V8 - 6L80E Trans - 3.42 Diff
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