They are both great units, If you don't mind the smell of diesel . 953 cc easy starting summer and winter however it has some vibration and noise. Usually unless you have other equipment that used diesel it probably won't be a big advantage. The 3010 gas at 617 cc is a great unit and you can save some money. The diesel sells for $9799.00 list, we sell it here at Beartooth Kawasaki for $9299.00 the gas lists for $8799.00 and we sell it for $8099.00 tough choice, good luck and thnaks for coming to the forum hope we see you in here again! 8)