Be aware that though GREEN generally means Diesel.. NOT ALWAYS, there is no "Standard" that is enforced (There is a standard and you'd be surprised at what it is, but it is not enforced.. it has also changed since I was a teen, Oh, the code for Gasoline is still RED (Flamable as I recall) but the code for Diesel has changed (Believe it or not that is inflamable.. I do know the difference)
As an example.. BP, British Petrolum (Bought out Standard Oil/American Oil) all the hoses are green, it's the company color, they are trying to make you think they are environmentally friendly. So they color EVERYTHING Green.
Same with the E-85 Pumps. they are trying to make you think that E-85 is more environmentally friendly. Alas. I have a degree in science (not an imressive one but still something to hang on the wall) and I do research for fun (Much more impressive) so I know that E-xx fuels are worse for the environment than pure gasoline, but hey... There are better alternatives.. Just not in production.