Definitely use the same procedure everytime. Last three gallons go in real slow to eliminate foam and then grab the fender well and pull up the truck to get the air every time too. Then fill it until I can see the fuel level towards the bottom of the neck and stays there.

I had a small checks and balance too this last fill up. In my truck, the idiot light winking on and off means about 2 to 2-1/2 gallons left. I had no idiot light but put twenty gallons (19.86) in a 21.9 gallon tank so in my case I am certain my fill up was complete.

NCDiesel