mazda tranny?
Senior User
Joined: Sep 2003
Posts: 310
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Originally Posted by 4.9LFord
how often does the fluid in my '95 5speed mazda need to be changed? it's hooked up to an I6.
I've seen two schools of thought on tranny fluid.
One is every 20,000 miles or so and the other is to leave it alone.
I would check it often as in most cases related here, the loss of fluid is the primary cause of death wrt the M5OD.
There are 3 rubber plugs in the front of the top loader that tend to go bad and leak fluid.
Junior User
Joined: Mar 2005
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From: south of ST.L
I change mine once a year. I had my rear end rebuilt about a year an a half ago. But after a year of driving (about 20,000 miles) the fluid still looked clean. I would say probably every 40,000 would be fine. Depends on how much you haul with it.
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Senior User
Joined: Aug 2004
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what brand of gear oil do ya'll recommend? I was thinking maybe changing my tranny fluid with maybe royal purple or another high end oil would smooth out my shifting.
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Senior User
Joined: Sep 2003
Posts: 310
Likes: 1
Originally Posted by 4.9LFord
what brand of gear oil do ya'll recommend? I was thinking maybe changing my tranny fluid with maybe royal purple or another high end oil would smooth out my shifting.
The M5OD doesn't use gear oil.
ATF is what is spec'd.
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