Well, 190A4 and posteriors sub-types had their engines adapted for the use of MW-50, but only 190A8 and posteriors sub-types had the aux tank, pipes and control devices for than kind of fuel.
MW-50 is only a kind of "fuel", 50% water and 50% methanol, the methyl alcohol is cheap and easy to obtain, and the water even cheaper
. AFAIK our actual aux fuel tank in A8 is just the real extra tank added to be used with MW-50 mix.
IMO, we have an A8 with all the installations needed to use MW-50, but we dont have the "cheap" MW-50 as a fuel option in hangar. We have the extra weight of the instalations, but we dont have the benefits of that weight.
In the case of our 109G10, it seems it uses MW-50 fuel each time WEP is activated, but we have no kind of extra fuel tank in this plane. I suppose our G10 is equipped with DB 605DB or DB 605DC engines. The MW-50 effect was limited by the supercharger, so, above 10k the effect will not be noticeable. But again, in our case, WEP produces a tremendous boost at hi alt, so, I suppose GM-1 is also present. Again, we have no kind of extra nitrous oxide tank in the plane.
A8 had all the devices related to the methanol-water injection and the only reason I see to limit is usage during the war could be a negative effect in the "life" of the engine along the time. AFAIK, D9 had just the same instalations present in A8 for MW50 boost, and it seems D9 uses this mix with regularity. My conclusion is that I see no reason for not having this mixture available for our A8. We dont deal with the operational status of our engines along some weeks after extensive use of that kind of boost as we dont deal with the effect of the melt of gun barrels after prolonged substained fire.
