I purchased five bottles of Auto-Rx a couple months ago. Couldn't believe how a simple little bottle could bring about several important changes.

Treated the engines in my 83 Ford Club-Wagon, 96 Ford Windstar and the 89 Honda Accord. Also the trans in the Accord.

The Club-Wagon has a Jasper engine (installed year 2000) with about 40K on it and I have kept the engine clean with the best oil and maintenance. Yet I have felt a certain sluggishness over the past two years. (Dat's where my money goes -- on these cars. For me they must always be long-trip ready.) When I added Rx to the engine, when I drove across the street already a certain pep I noticed under acceleration!

Here's the best story though. Had a rear main seal slow leak that I couldn't stop with stop-leaks and I figured I was heading for an 8 hour job to drop the trans and install new seal. Well, Rx stopped the leak in a few days, and has been dry since. The testimonials and Frank's analysis on this website don't lie.

On highway, compression performance was breathtaking and sluggishness is gone.

The Windstar (150k) I had new head gaskets etc. done in March, and, again, I change my own oil and kept regular. Didn't notice much engine improvement with Rx. Although I understand there is a definite hidden chemical insurance benefit just the same.

The Honda (180k) also became a rocket ship after Rx. (Now I'm trying to get my son to take the car for a trans T-Tech over at Valvoline...)

I plan to treat the transmissions in my Fords eventually. Note that they now have Mercon V from Valvoline IOC T-Tech flushes done last November.

Found out about Auto-Rx on the Ford Taurus owners website, was given advice