Switched to Honda MTF, now tranny leaking terribly! - Saab 900 Bulletin Board - Saabnet.com
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Switched to Honda MTF, now tranny leaking terribly!
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Posted by Joe98 (more from Joe98) on Thu, 28 Sep 2006 10:55:37 Share Post by Email
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I followed all of the advice regarding how well Honda MTF is in the 5-spd and went ahead and drained out the old stuff (assumed it was 10W-30) and put in the Honda MTF. I have been driving with the MTF for 6 months/10K miles, and ever since doing the swap, I've noticed small tranny fluid drops on the garage floor.

I got myself under the car just now, and can see that the transmission case is completely covered in fluid, dripping it from every spot where a gasket is used. I replaced the gasket on the rear cover when I drained the fluid, so that gasket is new (Saab oem type), and even that one is leaking badly.

What's up? I can only assume that since the transmission only had 10W-30 in it for its life before I owned the car (approx. 146K miles), and now switching to Honda MTF, the new fluid is too thin and is passing through the gaskets. I could believe this if all the gaskets were old (and brittle due to age), but the rear one is brand new, and all of the bolts holding it down are tight.

I bought a set of gaskets to replace all of them on the tranny case (there are 4 of them), however, fluid is also leaking out of where the case is split in two halves and I don't feel like taking apart the case to replace that gasket as well (if I can even buy that one).

Has anyone had this problem? Do I go back to 10W-30 after replacing all the gaskets so I won't have these leaks anymore? It constantly drips from all over the tranny case, so it's making quite a mess of the garage floor.

Joe
'93 900TC 156K
'98 9000CSET 99K

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