Tar Baby..

...500, 2380, MBJII are all something like 97% the same, its only the manufacturers base oil addative package that diferentiates them slightly.....by the time we've diluted them down further...well, the difference is'nt even worth typing about... Personally, having spent several years in the oil reaserch buisiness i wouldnt really use the Steam Turbine or 2 stroke oils which have totally different lubrication properties completley...just my threepennybits worf...