German B4 fuel octane

[Piper106]

Does anyone have a documentation or a link that would give the rich mixture octane rating or performance number for the German B4 fuel??

I have read the documentation on the German C3 fuel, but I have never seen the rich mixture rating for B series fuel.

Piper106

 

[vikingBerserker]

This might help out Piper:

http://www.ww2aircraft.net/forum/aviation/questions-about-wwii-87-octane-aviation-fuels-18051.html