Originally Posted by Boeingaaa

Don't prepay for gas at Hertz....ever. There are more then enough gas stations, I find the G&M (?) to be the cheapest.

One thing to add, since you are going on an extended trip, look over the car extensively for damage and ensure it is documented prior to leaving the Hertz lot. Get an agent to sign it and/or take pictures/videos. It's always best to play it safe and avoid that headach when you return.