dtech
Well-Known Member
There are different flush scenarios, much of the don't flush negatives seems to be when a tranny with old degraded fluid is flushed and it circulates sediment and particles throughout the tranny, resulting in it's demise, then there are the stories of shops with either improperly maintained flush machines or improperly operated causing issues. IMO flush way more effective in removing more old fluid and reducing fluid waste. But did you hear that from Ford doesn't recommend flushing ?I thought a flush was not recommended.
There is also a scenario where a flush is a bottle of chemical added like an engine flush, you run it for a limited time then drain it out, I've used this to good effect on poorly maintained trannies.
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