Bought fuel line and installed it in a classic car, within 1 week the re was significant discolouration of the fuel that had sat in the lines. Not sure if this is due to ethanol content of fuel or not but if the product is not suitable for ethanol fuels the website does need to be clearer. Had to remove it all and replace with another brand, that said the problem was swiftly addressed by supplier so clearly a reputable compant but perhaps with a batch problem on this occasion