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TwoStroke Premix Ratio Calculator
Premix gas ratios for your two stroke engine can sometimes get a little confusing even when you do it all the time and especially when you have an odd amount of gas or oil to mix. Twocycle oils are typically mixed with gasoline at recommended mix ratios as specified by the engine manufacturer. Common mix ratios are 8:1, 16:1, 32:1, 40:1, 50:1 and 100:1. To make sure you get accurate mixing ratios every time we reproduced this online fuel to oil ratio calculator.
Calculate how much oil to add to your gasoline:
Simply type in how many gallons "Fuel to Premix" and hit your TAB key or select another area of the calculator. The calculated amount of "TwoCycle Oil" will be displayed.
– or–
Type in how many fluid ounces of "TwoCycle Oil" you want to use and hit your TAB key or select another area of the calculator. The calculated amount of "Fuel to Premix" will be displayed.
And of course adjust your "Ratio" (default: 40 to 1) to what the manufacturer of your engine recommends.
The same instructions as above applies to the Liter to cc/milliliter (mL). 

Developed by Geistware of Indiana© ., 1999.
Updated October 1, 2006
