They all create condensation because they are quite literally a water separator. Think industrial air compressor. If my f150 pressurized and stored air I would install one.Just remember, there's only a very very small percentage of these trucks with high miles on the roads running catch cans, very small.
I've seen a few high mileage 1st Gen 3.5's torn down and it's definitely not as bad as people make it out to be. Will they hurt? Nah, only if they freeze up or overfill or a check valve goes bad.
Also as mentioned the ones that mount in the grill are great for creating their own condensation!
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