Originally Posted by spearfish25

FWIW, my gauge has slowly started working fine again. It was perfect until I used a bottle of Techron. Then suddenly on the next fillup, I had the last two lights out (closest to 'full'). With about 4-5 more tanks, first the second to last light came back on, and now they all light up again after a refill. I'm suspicious that the Techron applies a coating to the sensor that F's things up until it dissolves/wears off.