I was given a bottle of this stuff at NBAA and today I tried it out for the
first time. The "problem cleaning" areas on a MU-2 are the outer portions
of the horizontal stabilizer. The grime is a combination of carbon from the
exhaust, carbon from the starter-generator and prop-heat brushes combined
with a tiny bit of oil and also spots of grease from the flap jackscrews
after an inspection. It is an important area to keep clean since this
concoction seems to destroy the outer portions of the tail de-ice boots
which are expensive.

I can report that Extreme Simple Green Aviation removed the grime better
than anything I have tried (almost everything I could think of over the
years) and it seems to be a better oil/grease remover than regular Simple
Green. It is also relatively economical. I found a place on the web
selling it for $17.44 a gallon. Great stuff!

Mike
MU-2