On day 1 I was extremely organized. I had a ledger where I marked the price of gas, total cost, and mileage count each time I stopped to fill up. I also kept track of all the tolls I paid, where and when. Things became a little disorganized in California as I had to open up the back seat for passengers. By the time I left Oakland I had given up on any pretense of record keeping.
During the trip, I had days where I had to stop 3 times to fill up (didn’t want to run out in the desert). Today is the 7th day since my last time at a gas station, so I’ve decided to go through my records and bank statement to get an idea of how much I spent in fuel. As best as I can tell, I spent $710.38. That’s just under $.09 a mile. Good to know for future budgets.