The 2 huge issues around the RB30 relate towards the oiling system and crank collar. This isn’t particular to just the RB30 collection, because the RB20/twenty five/26 even have observed challenges with the oil pump and oiling methods. They all are afflicted with this difficulty (early RB26 only). In 1995, https://rb26-motor49369.dgbloggers.com/28614298/top-nissan-skyline-engines-secrets