AutoKeeper for Palm calculates gas mileage and records auto-related expenses.
BS Editor: It calculates gas mileage and records auto-related expenses, helps you analyze your autos performance and efficiency. It can also export the records to your computer so you never lose the data. With AutoKeeper, it will help you monitor your autos performance and manage all the cost related to it.

Details
Features: gas purchase, maintenance cost, repair cost, gas mileage analysis, statistics, etc. you can free download AutoKeeper for Palm 1.0 now.