So others reading can understand better what the discussion is about, over the years the Marti hoses and cables have transitioned to the metric size. In the cables it means that the diameter of the cable is larger. In some cases it is easier to distinguish the larger metric then others. For example the positive battery cables are pretty easy to distinguish the larger metric form the original diameter 65-70. Easy for me because I have a number of original that I am used to comparing to. Sometimes ebay sellers try to pass off the metric cables as original. I haven't had any experience yet of problems associated with larger diameter fuel line ,heater or radiator hoses but I image it is coming.