I have run close to a 50/50 mix in my 300SD and it seemed to run fine. Same or better power not much more smoke and a little quieter. When I process WMO, I add gasoline to 10-15% before pouring the WMO into the fuel tank which has X amount of D2.

I would keep running WMO but I can't find a way to get it. Some shops get paid for it and the ones that don't seem to be bound by corporate policy or EPA laws and will not give me the oil. Any suggestions on how to get more oil?

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1991 F250 super-cab 7.3 IDI. (rebuilt by me) Banks Sidewinder turbo, hydroboost brakes, new IP and injectors.
2003 S430 - 107K
1983 300SD - Tanoshii - mostly restored ~400K+.
1983 300SD - Good interior. Engine finally tamed ~250K.
Monark Nozzle Install Video - http://tinyurl.com/ptd2tge