New transmission leak with ATF+4
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From: The Real Northern California
New transmission leak with ATF+4
I'm wondering if anyone has had this experience. I changed the fluid and filter as usual but changed to ATF+4 this time from the ATF+3 that has always been in it. I now have a transmission fluid leak from the rear transmission seal...coming out between transmission and transfer case. Could the fluid switch have affected the seal? Is ATF+4 thinner at running temp? Any thoughts? Thanks.
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From: McKinney, TEXAS
Not sure, but sounds like ATF+4 is correct:
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~Rob
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ATF+4® is approved for use in older transmissions and is currently utilized in newer Chrysler®, Jeep® and Dodge® vehicles. The previous MOPAR ATF+3® formulation was discontinued in 2005 and ATF+4® is recommended for all transmissions filled with ATF+3®. Only certified ATF+4® is recommended for service of Chrysler LLC vehicles. The use of automatic transmission fluids other than ATF+4®, including those claiming to be like ATF+4®, could result in lower levels of performance, jeopardize transmission life and void warranties.
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Registered User
Joined: Mar 2005
Posts: 190
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From: The Real Northern California
Thanks guys, I wouldn't think that the change of fluid would do it but strange things do happen. Must be just a coincidence that it decided to leak now. Is replacing that seal a DIY'er or would it be advisable to take it to a shop?
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