i dunno if this is common but i have to add about a half a quart of oil to my fc like every 2-3 weeks, just wondering if thats normal.

 

burning excessive amounts??

 

if you're internal oil control o-rings are going bad that will cause increased oil comsumption. but a normal rotary in good condition will still use oil because of the oil injection through the 4 oil injectors to lube the seals inside the combustion chamber. my general rule, if it uses more than 2 quarts every 3000 miles something is definately wrong.