What kind of aditives.?
I will use Jectron Fuel injector cleaner form time to time, I will also use the Elf fuel system cleaner (now I only use the ELF).
I also add 2 cycle to my oil lol
and I recomend using Seafoam once every 2 months (or before an auto X, no more then once a month) directly into the intake..
Dont always believe what the manual says..
the stock rotary engien has an omp pump.. it serves a purpose but premixing is safer and will give the car better longevitiy then using the stock omp..
the manul is a guidline, that can be bent into shape