abusive driving style will kill any engine ,
i dont see there is any problem on my side ,
earlier on been drive the car for 14 months never change plug also , just that i have spare and free time , i change to a used plug just for testing and didnt find any problem ,
average on rx7club.com forum shown that most rotary lover rebuild their engine every 100K~120K miles ( 1.6 X 100k miles = 160k kilometer )
every car needs basic mantainance , i never see a evo or vtec could drive year long without problem ,