I do use a lead substitute additive in my old John Deere 40 Tractor, because of soft valve seats & guides. All of my other equipment & vehicles have hard seats, etc., and are designed to run on unleaded fuel. All of my equipment is run on non-ethanol unleaded 'clear', farm fuel purchased in bulk at the distributor for off-road use. Same for the off-road diesels, I use dyed farm fuel, purchased by the drum.
It certainly doesn't save a lot of money but the convenience is great. The distributor will even deliver, if the order is over 50 gallons. At today's cost of road fuel, that's a pretty significant deal when you live in a rural area.