Makes zero sense to compare tractors to our cars. Most tractors travel at speeds well under 20 MPH, so what good does air flow do? Their radiators are a different design.
I mentioned trucks...not farm tractors... geez louise. Having said that, the
Fiat farm tractor I use to slash, has a conventional copper car style radiator in it.
Jimbo's farther Rocky used to call trucks " tractors" he was a gear jammer!
But on the subject of trucks, notice where the temp sender is on a smallblock truck engine? :)
