What is the fuel capacity difference between the John Deere 6120EH and 6M 125?

The John Deere 6120EH has a fuel capacity of 44.4 gal. and the John Deere 6M 125 has a fuel capacity of 46.2 gal., a difference of 1.8 gal. The John Deere 6M 125 has the higher fuel capacity.