What do you average for fuel consumption 'gallons per acre' for your combine in different crops. Just curious what different brands, new/old, head combinations ect. average. Was running some numbers today and my new to me 6620T2 took 2.1 gallons per acre in the ugly wet, hard to shell corn I had this fall with a four row head. About a half gallon more than the 4435 hydro I had before. Yield was decent but test weight was low and also had lots of trash going thru the machine so that kept field speeds slow. Beans went thru easy tho and averaged 1.3 gallons per acre with a 15 ft. head.