Lifejackets are included in the rental price, but gas and tax is extra. The Sea-Doo will go out full of gas at the beginning of the rental, then we will fill it back up when you return it to see how much gas was used. The average amount of gas used is about 3 gallons per hour. This number can vary depending on how fast you ride the Sea-Doo. If you ride it full throttle the whole time it will use more than 3 gallons per hour, but if you take it easy it would use less than 3 gallons per hour.