Jet Ski Gas Tank Size and Usage

A jet ski has a 15 gallon gas tank on average. A few larger models have 18 gallon tanks and some smaller ones have 8 gallon.

A jet ski burns 10 gallons per hour at full throttle and 3 gallons per hour cruising. So you can go 3 hours with mix of cruising and racing.

You can bring an extra gas can so you can run longer between fill ups.


For comparison, a motorboat uses about 30 gallons per hour at full throttle due to larger engine and weight of the boat.