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   I want to do the tranny fluid exchange but I don't know what is in there.....

   FSM does spec low for a drain/fill. I always get ~4.5qt out of my 343 and check fluid level every once in a while. You should be fine to drain/fill with dex/merc. Do it a few times over time if you want, or do a full exchange - but not a power flush, or whatever they call them.

   • Words: 61
   • SpenserAK
   • Post #3
   • Jan 16, 2023
   • Forum: 80-Series Tech