for lubrication oil you better stay with the renowned names of the common brands, Shell, Esso etc. PT is a trading firm with stations to sell fuels and apparently also oils. I would never use PT lub oil , as you donot know where they bought the stuff nor do you know the quality of the lub oil. You engine is to precious to damage it with a low quality lub oil. For fuel PT is fine, as the fuels have to comply with a certain quality standard, for lub oils?