Castrol developed TQ-95 especially for Ford 4 speed transmissions, it is in the initial fill and is the recommended replacement.
It is also used by Maserati, and they would not use an inferior fluid in their cars.
You can choose not to believe, that's your option. But to change fluids you have to flush out the old stuff and completely replace it, you can't mix the two.
My auto has done 220,000k's on Castrol TQ-95, (1 complete change) with no problems. If you can find a fluid that is better than that, go for it.
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