JDM MAZDA RX-7 FD 13B-REW ENGINE FOR SALE - AN OVERVIEW

The rationale im jogging semi-synthetic instead of entire on synthetic is due to the fact I had been informed that for my engine being above 240K KM's it could do far more harm than great getting too slender? Is the fact appropriate?Really amazed by the caliber of the replacement engine I received. It’s been a prolonged and complicated encounter