ALL Singapore Airlines (SIA) and Scoot flights out of Changi Airport will use a blend of refined jet fuel and sustainable aviation fuel in a 1-year trial beginning in the third quarter this year.

Sustainable aviation fuel refers to non-conventional (fossil-derived) fuel. The physical and chemical characteristics of the fuel are almost identical to those of conventional jet fuel, and therefore these 2 types of fuel can be safely mixed, according to the International Air Transport Association.

The blended fuel also can use the same supply infrastructure and does not require aircraft or engines to be modified.