This is more of a why. But in some areas the cap on a diesel fuel tank now must legally be green. (I know because we have to paint some this color) In my area you must use a yellow can for diesel (I was prevented from filling a red gas can with a fraction of a gallon to do a spot fill at home) I ended up with a yellow tank I will likely never use again. In this state it used to be all things diesel matched including the yellow fill handle. Why now is there a motivation to change diesel tanks, cans and caps to green when it's always been yellow for like 70 years? http:/
Further why can the gas station use any color fill handle they want? One place had PINK on one of the handles alongside green gasoline handles.
If not even the fill station needs be bothered to follow the law why do I?
https:/ nasdonline.org/ 917/ d000760/ storing-gasoline-and-other-flammables.html /
I guess you have to wonder about the politics of fuel color coding and why it's unevenly enforced with state to state differences.
Also why did gas stations stop properly color coding pumps?
They were all properly color coded when I was a kid, now they seem to be based on asthetics.
Green gas, purple diesel?
And don't get me started on methanol wavianusa.com/ blogs/ news/ gas-can-color-designations