Off road gasoline is rare and varies by district, here in Canada I grew up in BC and we had “purple gas” and “red diesel” but purple gas was only sold at very specific stations, usually near parks where people would put it in ATVs and boats.

Now I live in SK and we only have “dyed diesel” which is your standard red farm stuff. You can get a discount on gasoline delivered to a farm tank, but there’s no colorant added and almost nobody does it anyways, since gasoline goes stale and isn’t used in farm equipment.

Myself I converted my remaining gasoline equipment to propane and run heating propane in it. The only gas burners left are lawnmowers, quads and a farm truck.