Among the things which could cause extreme oil use is apex seal failure which leads to greater clearance between the rotor and housing. This allows inner oil leakage in the combustion chamber causing gray smoke in the exhaust. Honestly I have bought components from several importers and it’s generally attention-grabbing https://httpsjdmengineforsalecomp45320.blogzag.com/81285729/the-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale-diaries