[lostchild]

Last week my car hit zero miles and when filled up took 9.6 gallons.

Are you sure you JUST hit zero mile when you could put in 9.6 gallons? I don't think I could ever put in that much gas just hitting 0 mile. With 0 mile, I am closer to 8.5 gallons. I reset my Trip A meter every time I gas up now, so when it hits around 400 miles, I would do a refill. And usually it is already at 0 range left. At 400 miles, I usually fill up to 8.8 to 9 gallons.