Thanks, I found lots of 93 octane close by and 100 octane at a small airport that will sell to the public (as long as it is for your kit plane in the garage, or for a gyrocopter to go buzz the Whitehouse).On my Iphone I have an app calle "pure Gas" ...it shows all the stations near you that still sell pure gas (no alcohol). From a chemical energy standpoint alcohol contains less energy than equivalent volume of gasoline. After that just meet the minimum octane from the manual and be sure its not leaded car gas for the classics.
I agree with all of the above. We have Shell and Phillips here with 93 octane. I am always nervous about no-label gas. Although I drive past the tank farm on the freeway and I don't see separate lapels, so I have to trust that there is a difference in the gas. I agree on the av gas, it is really for when you need the octane because of your ignition timing or boost loads. At Bonneville we have a choice of 5 or 6 gases to use and many people have found that the highest octane actually hurts their performance, the dyno or the track is the only way to tell for sure. We did use a lot of av gas in the early 70's when it became impossible to find adequate high octane for our race cars.Check into AVgas ...From past research it is not good for performance vehicles unless you absolutely need the octane rating. It is intended for airplanes and have additives for such. Also Higher Octane does not benefit you the higher it goes and may actually perform worse. you only need to meet the minimum and youll be just fine. if you go to a no brand station you may get a bad tankful too so i usually stick to the BP's Chevrons or Shell's too.
Sounds like you guys still get pure gasRecommendations for Australia are 95 or above RON.
We can get 91,95,98 or 100 octane,and also E10.
I was told to use 98 and to never use E10.
I've always used 95 or 98 in my 10R with no probs.
The H2 get's only 98.