Exterior oil leaks in the Mazda RX-7 FD are due to worn-out oil seals and O-rings that crack due to old age. This seldom takes place, but checking the oil degree often though inspecting for leaks is sweet since they are able to go undetected, leading to oil starvation.I bought my past 13b-rew motor from JJH Engoines, they shipped it in and I receiv