Simply enter the size of tank, or fuel added, in gallons such as 4.0 (four gallons) and click the how much button to see the correct amount of oil to add for a correct 50 to 1 ratio.
I know what your thinking....that's cool; but wait a minute, I can't carry this computer on my next fishing trip.
O yeah, and by the way, how about my weed-eater and chainsaw?
They don't run on 50 to 1 ratio!
Well......that's where you'll have to carry a pencil and some paper along and maybe a buddy that can operate them :-)
Use the following as a guideline for arriving at different ratios and for at the pump calculations:
Example of calculation:
GALLONS X 128 (ounces) / RATIO = OUNCES OF OIL TO MIX WITH GAS
6 gallons X 128 (ounces) / 50 (50:1 ratio) = 15.36 ounces of oil for 6 gallons of gas.
128 ounces = 1 gallon
1 ounce = 0.0296 liters
16 ounces = 1 pint
1 gallon = 3.789 liters
2 pints = 1 quart
4 quarts = 1 gallon
Always use the certified "NMMA TC-W" two cycle engine oil approved for your outboard motor.
Just remember that when in doubt, it's always best to add a little more oil which may foul the plugs a little.
Too little oil can damage the internal parts of a two stroke motor as that is your lubrication for crankshaft, bearings, connecting rods, etc.
