Castrol 2TRatio is a free Android application developed by Castrol Australia that calculates the exact oil to fuel mix for 2 stroke engines as recommended by the engine manufacturer. The app is designed for use in a wide range of equipment, including motorcycles, outboard motors, lawnmowers and garden equipment. With this handy app, you can quickly and easily determine the Castrol 2-stroke oil to fuel ratio required for your 2 stroke engines.

The app features a fuel slider that displays the amount of fuel needed and a Ratio Selector slider for the oil to fuel ratio. Simply adjust the sliders to determine the amount of oil required for the exact fuel to oil mix. In addition, the app allows users to switch between metric or imperial measurements and provides a link to the Castrol Lube guide to help you select the right oil for your engine.