Reference material - https://www.smartcockpit.com/docs/CL605-FUEL_SYSTEM.pdf Page: 16 Fuel tanks are expected to be within 400 lbs / 181 kgs of each other on taxi / takeoff / landing OR 800 lbs / 362 kgs during flight, to avoid Fuel Imbalance EICAS message. First, orient yourself on the overhead panel, we'll be working in the 2nd row (or middle row) of the FUEL panel area. (Fuel.PNG) All three of these buttons should be extinguished under normal operations. Gravity XF