We will be in Las Vegas (Delano) for two weeks in July. We will have a rental car for two weeks and I have some questions regarding gas: -how can I find out at which gas station, gas is cheapest? Preferably in the Delano vicinity. -when I will return the car, I will have to bring it back with a full tank. What is the nearest gas station to 7135 Gilespie St, the rental car center. I did find one at 220 E Warm Springs Rd. But maybe there are others. -what is a reasonable fee to pay upfront to the rental company so I won't have to fill up the car before returning it?