I'm thinking about selling my 260Z and getting either the 260Z with the diesel or the EFI engine. Gravely's website doesn't list the 28 Kohler EFI for the 260Z, but it does on the PDF file you can download. First off, does anyone know for sure if you can still get the 28 EFI on the 260Z? Will it be offered next year? Sense it's not listed on their site, I can't get a good idea of the cost between the diesel and EFI, but I'm guessing the EFI would be a little less, but not much. Which would you guys recommend? I'm looking for more power and better fuel efficiency. I'm going to be trying mulching next year on one of my larger properties, and I want the extra horsepower. I would also like to upgrade to a newer machine while I could still get a fair price for mine, plus my warranty is up now. I've spend some time on an eXmark Lazer Z XS 60" deck and I love having higher horsepower. What would some pros and cons be to getting the diesel and the EFI? Any help would be appreciated, thanks.