There is a document (97 pages) available in the National Archives of Australia that deal with the supply of 100 octane fuel for the RAAF that covers 1940 and 1941.
Fortunately they are available online:
A705, 164/1/975 (searching for this reference number doesn't return a result, search for "Supply of Octane 100 aviation gasoline" will give you the result)
RAAF - Directorate of Supply - Supply of Octane 100 aviation gasoline
http://www.naa.gov.au/collection/using/search/
You can also simply type "100 octane" in the search field, there are only 4 documents.
Maybe there can be found a evidence that
Quote:
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the Australian Government at that time was protesting vigoriously about the continued supply of lower grade 87 octane fuel when it too wanted 100 octane for the RAAF.
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Or there might be evidences that this was not the case, for example if there was enough supply on 100 octane fuel available there was no need to protest.
So far I didn't read through all the pages.
Interesting find page 97:
Quote:
14th August 1940.
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Brief survey of the engines likely to be available for aircraft that may meet Australian requirements indicate that fuel of 90 and 95 octane rating is called for.
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Even these engines likely to disappear from serious production early 1941 and some of the new engines will require 100 octane. Understand that Great Britain now using at least the appropriate octane fuel in all engines that can benefit thereby and has probably standardized on 100 octane fuel for engines of this class.
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