I was down in Orlando last weekend and I had the FBO fill my plane from a long trip. I have installed and fuel totalizer and it is calibrated. MY 66E takes 52 gallons, with 2 gals unusable. I only program 50 gals in my totalizer.
Well, when I was back at the FBO to pay my bill and take off, I was with some clients. My totalizer indicated that I only need 39 gallons of fuel and they charged me 48 gallons. I was very surprised and asked them to check and make sure it was the correct amount. Again my client was there and I didn't want to make a scene, and I thought maybe my totalizer was wrong (also, my fuel gauge backed up what my totalizer said too). But stranger things have happened.
Anyway, I flew back, filled my plane myself and the totalizer was within 0.1 gallons of the actual pumped fuel.
What would you guys do?