ICE fuel milage calibration

[Solarwind]

We use the engine quite a bit, as our normal trips exceed EV range. Our ICE milage is normally indicated as mid to low 30's, best has been high 30's, by the car. I am wondering if this might be off slightly as when I fill up the most I have ever gotten in the tank was equal to what showed as used, but most of the fillups are .1 to .4 gallons less then shown as used. I am the only one to fill the car as my wife has no problem with the plug but won't touch the gas. Has anyone had the chance to check this calibration?

[sinnombre]

It sounds like the calibration is spot on . The 0.1-0.4 is just the variance of how full you filled the tank . I got 43.3 mpg on my first time , 33.2 mpg on my second and 35.5 mpg on the third usage of the generator . The battery has given me a low of 37.5 and the highest so far of 43.3 miles .