ROTARY ENGINE RX7 NO FURTHER A MYSTERY

One of the things which could cause too much oil consumption is apex seal failure which causes amplified clearance between the rotor and housing. This allows interior oil leakage into the combustion chamber leading to gray smoke through the exhaust.My first time buying a used JDM Mazda RX-7 FD 13B-REW engine and experienced alot of uncertainty. Eng