the problem with rotarys here is not the fuel - its the owners.. these cars are not high speed draggers, what RX8s are good for is butter smoothness and very nice turns around the corners.
In Pakistan what I saw with RX7 or 8 owners was
racing for no good reason
speeding a cold engine i.e. kyunke un ke charya mechanic ne thermostat nikal ke phek diya - ke engine garam chalta hai iss se
using synthetic oil in their motors
fizool maintenance (desi tuning etc)
not running their cars for long distances - it needs a little high rpm highway every week to keep it clean
speeding a cold rotary is asking for flooding the engine and breaking the apex seals - coupled to synthetic oil - very surely the apex seals will break or the rotor housing will be polished smooth in about 4000 kms (the nikasil coating on a rotor housing is porous to hold an oil coating on it) burning a synthetic oil will make a plastic type coating on it which in turn will make the engine run on low compression with very high petrol consumption
secondly - people think its a 1.3 litre, meaning it will sip petrol not suck petrol, WRONG - a rotary engine has 3 firing pulses every revolution on a rotor effectively making it double the capacity (on paper).. Due to this misunderstanding they try to TUNE the engine.. and effectively destroy it