One of the things that could induce abnormal oil usage is apex seal failure which triggers greater clearance between the rotor and housing. This allows interior oil leakage in the combustion chamber resulting in grey smoke through the exhaust. Or big concerns like apex seal or turbocharger failure. If you’re https://https-jdmengineforsale-co24320.madmouseblog.com/18547426/jdm-mazda-rx-7-fd-13b-rew-engine-for-sale-an-overview