As it sits for a long time it may be worth using a Synthetic or Semi-Synthetic Oil Such as Penrite HPR Diesel or HPR Light Diesel. - Semi-Synthetic OilsMy bj40 only gets started once every month or so, so i change the oil based on time, more than anything else.
All the Oil are different. You select one of those Oils, That you think is the best for your use.how can the manual say to use 3 different types of oils? or are they all the same thing?