I have gassers and I have a diesel. My diesel is a JD 997 w/72" deck. The 997 burns 1/4-1/3 a gallon per hour. I had a 850a with a 72" before the 997 and the 31hp Kawasaki burned almost 2 gallons per hour. The extra cost of the diesel will pay for itself quickly with todays gas and fuel prices. I don't see how you guys who run these big block gassers can justify them over long term with todays fuel prices. Diesel is a better option today. I need to replace my 757's next year, i'm hoping Deere comes out with a smaller diesel in a small frame ztr, you listening Deere? BTW, i didn't buy a diesel for horsepower or torque. I bought it for fuel savings and longitivity.