Proof of Value

It is a True "Miracle Worker" in Automatic Transmissions

Frank, it's now been several months since I put Auto-RX in the automatic transmission of my two trucks. I've already finished the process in my '83 F250 (original C6) and it shifts beautifully, absolutely flawless. I may have mentioned it before to you, but when we hooked it up to the transmission flush machine, the ATF (which was only a few thousand miles old) came out very dark - obviously the Auto-Rx had done a lot of cleaning, this despite the fact that the previous owner of the truck had religiously had the transmission flushed every 30,000 miles since new.

As for my '76 C20, I originally put Auto-Rx in the transmission because it would regularly fail to shift into Drive or Reverse upon cold starts, and a friend who owns a transmission repair shop had told me that the reason this was happening was because rubber parts in the transmission were becoming hardened with age. Within a few days of adding the Auto-Rx the problem greatly diminished, and within a week or so, it stopped happening altogether. It has not happened at all, since! Not only that but the actual shifting quality of the transmission has improved dramatically... I didn't even realize it wasn't shifting well until I experienced it after using Auto-Rx.

The C20 is still in the Auto-Rx process, because I don't drive it much, but it does get a lot of cold starts, because it is parked in my shop and we have to move it to make room for customer cars. There have been plenty of opportunities for it to display its past problem, but not once has it done so.

Auto-Rx is great in engines, but it is a true "miracle worker" in automatic transmissions, yielding very tangible results, quickly.

I'll get another update to you in a few months, when the weathers colder, and there's more of a test on the C20's transmission.

Dave