Like a moron I did some damage to my SDL tranny by running it with too much fluid. One day it would not do anything except in first and reverse. I have kicked myself for it many times. For a while I thought I had ruined it. But then after a year of sitting it I miraculously found it was working pretty well.

By then I had corrected the fluid level, I took it out on the freeway to see if it would slip - it never did. So I've been driving it more. A few days ago at a stoplight it would not move in drive. I put it down to low and took off - when I shifted up it behaved normally.

I checked the fluid while warm, it was a tad bit high, I siphoned off maybe 6 fluid ounces. It then read right at the add mark so I put some back in. I noticed it was not bright red. It was brownish red, which only makes sense.

I'm thinking new fluid and filter would be a good idea, but then I started reading that I might be disappointed. It will be a while before I buy a rebuilt tranny.

Any opinions?

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Te futueo et caballum tuum

1986 300SDL, 362K
1984 300D, 138K