Originally Posted by Phak1
Mine show full at the right side dot, but I can’t say if the sending unit is calibrated. When I approach the left dot, it’s time to get gas.

If you short across the two terminals on the sending unit, that should give you a full reading on your gauge, then you will know where the full reading is.

Nope, zero ohms is empty.

'57 GMC 102, Original 347 V8, HydraMatic, 3.08 rear gear, added A/C, disk front brakes, HEI, AFB carb, '98 Honda Black Currant paint. T-boned and totaled 10/12
'52 GMC 152 Stake Bed, Original 228, SM420, added A/C, HEI, disk front brakes, '67 Chev 3.55 rear gear. Gets used as a real truck.