If you own a performance car with a wide range of recommendations, then yes, you can try different fuels.

My Mitsu Evo in the manual says that it will run on 95 to 98, so maximum power is achieved at RON98.
My BMW says it will run on 91 to 98, so being a cheap bahgger I isi with cheapo petrol RON91 to jimat.
Under law, all fuel contains a certain amount of detergents. Some fuel sellers to increase sales put more additive in their premium RON97 petrols, but not all of them.

Also if you use a direct injection engine, all this cleaning shit is useless.