I am looking to get a bottle but afraid it may harm if no one has used it.
We have sold literally hundreds of bottles of this over the years and it defiantly won\'t do any harm as the RX-8 and RX-7 essentially share the same engine just with the modified intake and exhaust parts of the engine changed.
Personally used in in our RX-7\'s, RX-4, RX-8 plus normal road cars
To quote one owner who said he had honors degrees in engineering and chemistry in his signature,
"always thought this type of product was snake oil but cataclean actually works"
A by product of Cataclean is, because it makes the combustion charge burn hotter to clean the cat out it should help clean carbon out of your engine and seeing as carbon gums things up inside Rotarys, this can only be a good thing for any Rotary.
Hope this helps.