All of the abovementioned troubles, Specifically extreme oil usage, could lead on to turbo failure in the Mazda RX-7 FD. The turbochargers will need a constant offer of oil to help keep them lubricated and cooled, and when there are oil problems, the internals will overheat resulting from excessive friction. https://cristianungwm.p2blogs.com/32803112/detailed-notes-on-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale