Here is a list of the lube specifications from Nissan for the WD21, D21, and some caR50. The caR50 Pathfinders use the same transmission, transfer case, and differentials as the WD21, so lube specifications for those will be the same. I do not have the information available for the rest, however. The commonly known TSB for the WD21 manual transmission was fixed at the factory when the R50 was introduced. Nothing fancy, just the basics. Please, feel free to add to the list.   Type: Engine oil