Coolant Capacity & Specification Finder by Car Model
Some hybrid vehicles have separate cooling circuits. CarFactBook keeps those manufacturer references distinct instead of collapsing them into one number.
Honda Ultra e-Coolant 50% · 3.8 L including 0.40 L reservoir
The official Fit Hybrid owner manual lists Honda Ultra e-Coolant at 50% concentration and an approximate replacement quantity of 3.8 L including the reservoir.