there are several different qualitys of stainless neopreme hoses, you got one of the cheap ones like I ended up with several years ago I now try and only use the teflon lined stainless hoses on fuel The teflon lined hoses are a lot stronger on burst strengths and take a lot more corosive chemical as well as a lot more heat before they will fail . IMO kerosene, gasoline and diesel fuels should not make a good quality fuel line, lined or unlined with a stainless steel jacket, leak