The apex seals have to have lubrication, and given that they are basically located in the combustion chamber, some oil are going to be burned. So being technical, this is not a problem or dependability issue insomuch being a consequence with the rotary’s structure. as depicted on Youtube, go away https://built13bmotorforsale03455.kylieblog.com/27023186/13b-rew-motor-for-sale-secrets