One of mine is old enough to vote - it's been demoted to dusting my white Dually I've never washed it; I just shake it out, which may well be pointless, but IIRC that's what they advised.
A new one is on my to-do list, and it'll also be from them. I have another brand I bought from AutoZone, though, and it works fine. Maybe the tech is widespread now, I don't know.
