I didn't pay attention to this during my 4K trip with the 08 4.8 sports, but I kept wondering why the total miles for the tank did not register higher than what I expected.

Yesterday I filled up at home. This time I wasn't distracted by how much ethanol and how fast I could get down the road. So once the pump shut off automatically, I turned it back on since gas here is 70 cents less than what I paid 3 weeks ago in NC.

What surprised me is that I was able to put in one gallon or more of gas than where the pump started. I was confused because with my 04 4.4 sport, I could usually add maybe 20 cents more and the tank was completely full.

Was this anamoly or have others already noticed this?

BTW, I can't find the thread about the 2 second rule in terms of turning the iDrive knob to get back to previous screen but that saved me time during the last part of the trip. Thanks for the tip.