Lol. Premix ratio for a DT, it does not need a racey mixture. The standard Oil pump is about 45-50:1 ?
I ragged mine and found 35:1 to be adequate in the end, I only just managed to briefly heat sieze, with little damage with the oil pump fitted a time ago, and that was flat out for 4 miles! The later 3RM pumps are pretty good, the older design were ones people had issues with.
