January 2011 Issue
Why Is Two-Fuel DOA? It Works in Europe
Supporters of mogas would like to see E0 as a second or even third fuel. But it’s a hard sell to cash-strapped FBOs who would have to invest in tankage.
As general aviation moves bumpily along toward a replacement fuel for 100LL, there’s a backlash brewing. Why, ask the owners of low-compression, low-output engines, do we have to settle on a single fuel? Why can’t there be two unleaded fuels, a less expensive one for some users and a high-octane version for the rest? And why can’t one of those fuels be mogas, which enjoyed wide popularity during the 1980s? Two-fuel systems are in place throughout western Europe, although not every airport has dual fueling. Some—usually smaller grass and club fields—have only one fuel available, while others have a 91/96 (the equivalent of 94UL) and conventional 100LL. A handful even have three fuels, since mogas has a tiny presence in Europe.
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