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US approves lead-free and eco-friendly Aviation Gasoline

The Federal Aviation Administration (FAA) has approved a new type of Aviation Gasoline (AVGAS) that could be the new standard in the country. This is a lead-free composition, with less environmental impact compared to the traditional AVGAS 100LL. FAA approval is valid for all aircraft that are already in service and use the traditional leaded 100LL as fuel. The new specification is called G100UL, and was developed by Oklahoma General Aviation Modifications. For now, there is no schedule to implement the new fuel at scale, but the FAA has determined that by 2030, all AVGAS distributed in the US must be lead-free. Oklahoma General Aviation Modifications stated that it used modern additives to increase the octane rating of gasoline, something that was achieved through tetraethyl lead (TEL). “Using leaded fuels is an operational safety issue, as without the TEL additive, octane levels would be too low for some engines, and using a lower octane fuel than needed could lead to engine failure.”, the FAA said. In this way, the new fuel is also quite similar to premium gasolines used by the automotive industry, with high octane and low sulfur content. An analysis will be carried out at scale in the following months, with the collaboration of aircraft mechanics, to verify if the new fuel causes accumulation of residues in several engines. – https://www.aeroflap.com.br/eua-aprovam-gasolina-de-aviacao-sem-chumbo-e-ecologicamente-correta/