Sustainability and Environment
Montana Renewables Introduces 50% SAF Blend to Market
Company has added onsite blending capabilty at its Great Falls refinery
SAF tanker truck
Sustainable aviation fuel producer Montana Renewables has shipped the first load of its MaxSAF blend, directly from its Great Falls production facility.

Sustainable aviation fuel (SAF) producer Montana Renewables has reached a milestone with the commissioning of onsite blending and shipping facilities at its refinery in Great Falls, Montana. As a result, the Calumet subsidiary is now offering a 50% SAF blend known as MaxSAF, the highest ratio currently allowed under ASTM standards.

While recent tests have proven that modern aircraft can operate on 100% SAF without concern, the fuel systems in older, legacy aircraft benefit from the aromatic compounds present in conventional jet fuel to form tight gasket seals; hence, the SAF blend is currently capped at 50%. The most commonly available blend ratio on the market is 30% SAF, which accounts for an approximate 25% reduction in life cycle CO2 emissions, compared to jet-A.

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