BCZoom, That is a good idea for the Kubota. I just need now something for the big tractors. I will come up with something.Using pvc, large pvc fittings - something to fit in the tank neck and that the funnel would snug in as well. When we get through calving season , I will have some spare time to play with this . 50 % of the calves are here with 4 sets of twins already. Thanks again. Bordercollie</p>