I have a mazda rx7 1988 convertible six port turbo whit around 5 k mile on an engine rebuild but since day one the car smoke i remove the turbo is the ome one but hybrid the front is to4 i bought the engine disassembled whit the turbo and everything. I bought everything of inside the engine side seal, corner seal, spring and bearing new oem except the hard oil seal that use the same but the mechanic said the are whit in specs and the apex seal and who are super seal. I finish the car in 2011 and barely used. The car start fine hot and cold i am running full premix 1.0oz per gal idemitsu. The not use barely any oil on the crank i put 5 qtr and int oil change i take out 5qt. I think the problem is the turbo oil seal is bad. I take the turbo out maybe 2 years ago and change bearing and seals and put a oil restrictor of 0.10 but the problem continues but now i wantto fix it.here is a video of the car