I guess one can find out (I am going to do that) how long it lasts if I use no Nitromethan, then only 20% Castor
for flying and the last flight @ every flying day to be on 20% Aerosave Oil(synthetic). Then spray pure Aerosave
Oil in the engine and rotate it with the starter for 10-20 sec.

And if then the needles get broken then the mystery goes on ...

In other words, Nitromethan is a Bad-and-Ex*****ve thing ... responsible for lot of corrosion on
almost anything; lets fly on FAI fuel, it is lot cheaper.

By the way, you might have experienced old-time fact: - when your Oil contents is about 30% the power is
like at 5% nitromethan.

Have you noticed that ?

If not, try and see by your self. The RPM metter cannot be wrong that mich. I had this well tested.
Still I can only guess some explanation hints, nothing yet scientific. Surely glow plug should be correct
one, not OS8, maybe A3 or even 4-stroke one to get the idle OK.

Anybody out there who can tell the real Physics-reasons behind that ?

At the end almost any Oil is lot cheaper than Nitromethan and ... lot less corrosive, isn't it ?

(i.e. lets get back to those good old times ... the people there were not that stupid if they
didn't use Laptops; I hope my employer does'n read this)

Cheers,
Nick