My advice would be, like my Hispanic friends in Texas use to say, "Don’t worry about it"!
MY PA will go above full when I fill the tank up to the neck, and will stay above ¾ for about 150 miles. After it gets to that point, it seems to move down faster. It still is getting 18-20 mpg around town, no matter what the gauge reads. Don't spend money unless you have to!
