I attended a summer conference here in Missouri and Gates reps. brought up fuel hose changes. There is the old hose specification and the new hose specification. They said there are 40 plus blends of fuel with different chemical additive packages here in the United States and because of these chemicals, new hose specs were needed to prevent premature hose failure. Apparently some states have mandated the new hose and others have not. Missouri has not, Illinois has according to them. He was moving too fast with his powerpoint presentation for me to see more. The new hose can be identified by the word Barricade on the hose itself and I believe he said the hose reel is green in the store. I asked why stock both types of fuel hose and his reply was the chain stores want to remain competitive in their area so you have to ask for it. He said they come in all standard sizes and in a low pressure and high pressure hose as well excluding gasoline direct injection (GDI) which requires special OEM line. Hope this helps. Gerard