I posted my UOA from my motorcycle, I ran amsoil 10w40 which sheared down to a 30wt with my aluminum being 49 for this sample. I was wondering since I just changed the oil with the same 10w40 can I add anything to it to increase the viscosity and see how the engine likes it? or do i need to just wait and switch my oil out to a 20w50?
Thanks
Howard
Thanks
Howard