Mine runs true to E, mid point and F but what I've learned is it pretty much depends on the accuracy of the sender. The AD fuel gauge was a very good one and will be accurate as long as it receives resistance of 0 ohms at empty, 15 ohms at mid point and 30 ohms at full...unless something wonky is going on like the needle is bent and rubbing somewhere. What I've also learned (and it took m almost a year's worth of studying this) is that the fuel gauge senders being sold out there range from mediocre to absolute junk. There's one sending unit I like a lot...have mentioned it here often...it is sold on eBay by a seller whose id is renbusan. About $30 shipped and is very accurate. It was designed and made in Taiwan by somebody who knew what they were doing. Good luck!


~ Jon
1952 1/2 ton with 1959 235 | T5 with 3.07 rear end