Thanks guys for the complements. My son is 4 and thinks tractors are the coolest thing in the world. When he saw my new Kubota, he went nuts. As far as fuel additives. It cost me $14.00 to treat 75 gallons of fuel. In the grand scheme of a $15k tractor, it's a no brainer. My dealer said its good idea mainly for the poor quality of consumer Diesel fuel.