EVA Airways and Garuda Indonesia Airlines will use GE’s fuel management service to reduce fuel consumption and carbon emissions for their entire fleets.

GE Aviation is collecting the data this month from the airlines so it can “analyze behavior patterns and drive specific things in their operations to reduce fuel burn,” Giovanni Spitale, general manager of GE Aviation’s Flight Efficiency Services, told Aviation Week on the sidelines of GE’s Minds + Machines 2013 event.

Examples of options that might result include measuring single-engine taxi or auxiliary power unit optimization. While some of these moves might seem like easy targets, Spitale says many times operators don’t know how to measure the effectiveness of these activities­—so GE helps drive procedures and provides data to show measurable success.

So far GE collects the data for the fuel management service manually—it’s not automatically streamed to GE—but in the future, this could be an option, says Spitale.

GOL Airlines, which was the launch customer for GE’s fuel management business in 2010, has moved beyond monitoring specific aircraft to evaluating the Brazilian infrastructure in which it flies.

GE Aviation, along with other aviation stakeholders, is analyzing airspace efficiencies at 10 airports in Brazil through the Green Skies Brazil program. By analyzing airport and airline operational models, GE can quantify the value of deploying Performance-based Navigation procedures in Brazil.

Spitale says GOL alone hopes to save at least $90 million over five years.