iPhone Screenshots


Calculates fuel or oil quantities based on desired mixture ratio for 2-stroke engines.

Fuel and oil quantities may be calculated using a variety of units: litres, millilitres, US ounces, US quarts, US gallons, Imperial ounces, Imperial quarts, Imperial gallons.

Enhanced slider for selecting mixture ratio. Mixture ratio may be set by sliding pointer or set incrementally by tapping or pressing to the left or right of the pointer.

Commonly used mixture ratios may be saved and retrieved for future use.

Clean and intuitive user interface - no ads ever!

1. Select desired mixture ratio using slider.
2. Select the fuel and oil units.
3. Enter the fuel (or oil) quantity to calculate the required oil (or fuel) quantity to meet the desired mixture ratio.
4. Touch SAVE to store the mixture ratio.
5. Touch LOAD to retrieve previously saved mixture ratios.

What’s New

Version 1.2

iOS9 compatibility

Ratings and Reviews

1.0 out of 5
1 Rating

1 Rating

penjoD ,

Limited use

Nice app but only calculates up to 50:1!

App Privacy

The developer, DBFlight, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

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


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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