iPhone Screenshots


Castrol 2TRatio Two Stroke Oil Ratio Selector calculates the oil to fuel ratio for 2 stroke engines

With this handy application, you can quickly and easily calculate the Castrol 2-stroke oil to fuel ratio needed for your 2 stroke engines.

Applicable for motorcycles, outboard motors, lawnmowers and garden equipment, this calculator determines the amount of oil to add to the fuel required based on the ratio as suggested by the engine manufacturer.

To determine the oil required for the fuel needed, simply use the fuel slider to display the amount of fuel needed and use the Ratio Selector slider for the oil to fuel ratio. The Oil required is instantly displayed for the exact fuel to oil mix.

Under settings, there is a switch between metric or Imperial measurements and a link to the Castrol Lube guide so you can check what oil is right for your engine.

What’s New

Version 1.1

Updated for latest iOS.

Ratings and Reviews

4.2 out of 5
34 Ratings

34 Ratings

Clifford George Hiron ,

App review

App worked really well until my phone updated itself can you please update this app so I can use it again?

Kritt45 ,

Needs to be updated

App worked really well until phone update its self. Can you please update this app?

no more fuel mixing ,

Need update

Perfect app until phone update now it won’t work! Please update this app so I can use it again

App Privacy

The developer, Castrol Australia Pty Ltd, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer's privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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