[Glider]

I do like the way that the big questions get ignored while attention is diverted down side streets.

The arguement seems to be the RAF couldn't use 100 octane because a manual that may or may not have an accurate date, may or may not have all the updates posted in it, didn't mention 100 Octane in one section. Maybe its being simplistic but if I have a combat report from a Spitfire Unit saying that it was used in combat then the engine had been modified to use it and it was used.

However there is no doubting that on average 10,000 tons of the stuff was consumed each month from April - July 1940. We have combat reports that say that it was used and station reports that say that they had been equipped with 100 octane. We also know that Bomber Command, Transport Command, Coastal Command, Non Operational units didn't use it until post August 1940
So if the nay sayers say that FC didn't use it, who did?

Its worth remembering that the whole of the UK only used 36,000 tons of fuel a month so 10,000 tons is just under 30% of the fuel used in the UK. Now if Crumpp can give a reply to that question with some evidence instead of just another theory then its worth paying attention to it.