nterceptor, Dominator, DEO (5w40), SSO (0w30) all have a pour point within 4 degrees of each other. The kinetic viscosity at 100 degrees C are much better on the motor oils compared to the 2-stroke oil. Personally I think Amsoil DEO would be a great turbo oil. I run this on my turbo Diesel (VW TDI) and my UOA's have came back great. Really any CJ-4 oil is going to run VERY well in a turbo application. They handle heat so much better.
The TBN (total base number) is higher on these oils as well, important considering these turbo don't have filters (I don't think they do).
I don't buy that 2-stroke oil flows any better than a proper regular oil. At least the published numbers certainly don't show that.
What is the oil sump capacity on most turbo systems?