Oh yea forgot original post. Go with a diesel. Most efficent diesel in my opinion is the Cummins motor. Cat make a great motor, lots of power. But Cat is thirsty. Example: I have 2 skidders a Cat 518 #21,000 and a Timberjack 380 with grapple and winch #32,000 Jack has 6 cylinder Cummins. The cat...