I am about to do a transmission fluid change in my 1987 300D. Do I really need to use the MB fluid? I searched the forums and found a couple of posts that said it would be ok to use dextron III. But there was no real definitive post or thread that said "it is acceptable to use x brand fluid in place of the mb fluid"
Thanks.

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AJgeo
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I briefly owned a 1987 300D
Now I get around in/on these vehicles:
1982 Honda CX500 - 50 mpg
1995 Saturn SW2 - 30 mpg
2006 Surly Long Haul Trucker
2000 Trek 8000
2005 Honda TRX500FM