Own a certified airplane? Just say no to ethanol

In my Nov. 23 column, “”What effect does ethanol have on airplanes?”", I tried to answer the question of what to do if you end up accidentally getting some auto gas that contains ethanol in your airplane. I had intended this to be information for people who tried to use non-ethanol containing auto gas, but unintentionally got fuel with ethanol.

[Read more...]

Oregon legislature compromises GA safety with new ethanol law

I believe it was Mark Twain who once said that nothing is safe when the legislature is in session.

[Read more...]

What effect does ethanol have on airplanes?

“”What is the effect of having mixed 10% ethanol with avgas and/or ethanol-free mogas on two or three occasions?”" asks reader Ken Rice. “”The place where I bought ethanol-free mogas lied to us about the change to 10% ethanol. I only found out about it when I asked the tanker driver.”"

[Read more...]

Understanding octane

The most interesting and least understood part of a fuel’s properties is the octane quality or number.

[Read more...]

The difference between 100/130 and 100LL

Some readers, including Noel Dennis, were confused when I made the statement in a recent column that 100LL is actually 100/130 (The definition of insanity: Finding a solution for 100LL requires looking at the facts, Sept. 7 issue).

[Read more...]

Stump the expert

Own an antique engine?

[Read more...]

There are no simple answers to complex problems: And no magic pill for unleaded avgas

In my last column I berated the author of a letter to the editor about a simple solution to the unleaded fuel crisis (The definition of insanity, Sept. 7 issue).

[Read more...]

The definition of insanity: Finding a solution for 100LL requires looking at the facts

In the Aug. 10 issue of GANews there was a letter to the editor in response to my article on unleaded avgas and the insanity of developing a marketable product (Unleaded avgas: You’d have to be insane to try to develop it, June 6 issue). The letter stated “”What’s to develop? Leave out the lead and 100LL automatically becomes 95UL. Since virtually the entire GA fleet is already technically capable of running on 93-octane car gas, why would that be insane?”"

[Read more...]

Can I use an SAE 60 oil?

Dan Mooney, who has several round engine aircraft and a Skybolt with a Lycoming IO360A1B engine, has a question: Can he use oil from a drum of Phillips 25W-60 that he has for his round engines in his Skybolt? He concludes with, “”It gets pretty hot around Tulsa, Okla., in the summer.”"

[Read more...]

The positives of unleaded gas

In my last column, Unleaded avgas: You’d have to be insane to try to develop it (June 22 issue), I discussed the downside to the proposed lead phase out for aircraft piston engine fuels. But, like most things in life, there’s also a positive side to the issue.

[Read more...]