Originally Posted by flyby
I've been using Z-Max since I picked up my car (Aug 30) got it on the way home. If it's snake oil I guess I am the fool, but I've had zero problems. I also use it in the beater Jeep I picked up in November. gas mileage went up by almost 15%. must be some rel strange snake oil, or just luck or maybe as they found out on Horsepower TV on the dyno it made greater horsepower and lowered the needed fuel. I would sooner believe Carrol Shelby, what I saw in my Jeep and on Horsepower TV. NOT SNAKE OIL,
Great first hand info. Thanks for sharing. Restores my faith in Mr. Shelby.