A lot has been written about who is developing 100 unleaded avgas fuels, but we should look at who is NOT working on a candidate fuel.
Visser's Voice
Unleaded fuels and exhaust valve recession
What needs to happen to move forward towards an unleaded future for general aviation?
Avgas from the Wright brothers to today
There is still a lot of confusion about the transition to a new unleaded avgas, especially around the differences between fuels approved through the Supplemental Type Certificate (STC) and a specification from the American Society for Testing and Materials (ASTM). It may help to look at the history of specifications for avgas.
Grease: It’s not one and done
Why can’t you use just one grease in your aircraft? One reason is that not all greases are created equal — and the differences can cause problems.
Murphy’s Law and the search for an unleaded fuel for general aviation
Murphy’s Law states that anything that can go wrong will go wrong. In the transition to unleaded fuel for general aviation, what could possibly go wrong?
An expert’s tips on preheating your aircraft engine in the winter
What are the best recommendations for pre-heating an aircraft engine?
STC vs ASTM: What’s best for unleaded fuels?
There is some confusion as to how the ASTM process compares to Supplemental Type Certificate (STC) approval for the unleaded fuels that will replace 100LL. Some people even think that they are basically the same. In reality they are very different and most of that difference goes back to our old friend liability.
Can I mix different brands of oil in my aircraft’s engine?
While conventional wisdom says you shouldn’t mix different brands of oil in your aircraft engine, our expert says otherwise.
Is it OK to cruise with an oil temperature of 245°?
I like this question because I can give a definite answer: No.