Does anyone mix motor oil. Using edge 10/60 at the moment but want to add half 0/40 with it to thin it down a bit. I find the 10/60 puts too much drag on the motor. Castrol tech said it would be fine to do but all I really need to use 0/40. I'm thinking this would be the best of both worlds, there both pao and castrols two best oils.
Has anyone tried this before?