Al,
If your trip should include any part of California make sure you fill up with gas before entering this republic. Not only are the prices asinine but the gas is worthless. You will think something is wrong with your car. Every person around here that goes out of state for vacation comes back talking about how much better their cars, trucks, etc ran once they got out of Calif. and filled up with gas in other states. They get much better mileage and power. Some people up here that live near the Oregon border drive into Oregon to get gas because it is so much better than our MTBE , smog adding, ground and water polluting gas.
Ron