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87UL and 93UL aren't much more expensive than automotive gas, since it's pretty much the same thing. It's 100+ octane leaded gas that's expensive, and it'll sta
by hx87 10y ago
87UL and 93UL aren't much more expensive than automotive gas, since it's pretty much the same thing. It's 100+ octane leaded gas that's expensive, and it'll stay that way until general aviation gets out of its carburetor & fixed timing rut and join the modern world of direct fuel injection and FADEC.
- dsfyu404ed 10y agoWhich will not happen quickly because FAA certification makes re-powering small aircraft expensive and strict maintenance requirements keeps half century old planes running
- jabl 10y agoThe're working on an unleaded 100 octane avgas: http://www.eaa.org/en/airventure/eaa-airventure-news-and-multimedia/eaa-airventure-news/eaa-airventure-oshkosh/07-25-16-100ll-replacement-on-the-way http://www.eaa.org/en/airventure/eaa-airventure-news-and-mul...
- mikeash 10y agoI didn't realize there was 87/93 avgas. What's the difference between that and what goes in cars?
- hx87 10y agoChemically, they're identical. They might be taxed differently though.