Me neither!![X(]

I do not understand the math people are presenting here for fuel. If you want 18% final oil in a new fuel, you convert the 18% to its decimal equivalent, 0.18 ( some say just .18, same thing) and multiply it by the amount of fuel you are making, like 4000 ml, so you would take .18 x 4000 ml to get the ml of oil to add to your final 4000 ml. Of course ALL the decimal equivalents together must equal 1.0 or 100% of the fuel. For 15% nitro it would be, in this example, .15 x 4000 ml or 600 ml of nitro. All the rest of the volume would be methanol if you are adding just the one oil. What I suspect is that a lot of folks forgot that half of a pie is also 0.50 or .50 of the total pie, and the total pie is 1.0 Mixing different fuels is a little harder, or when you add, say castor oil to a fuel and change not only the oil content, but also the volume at the same time. Some of these roundabout explanations are harder to understand than just making it up using simple volumes and converting percents to their corresponding decimal. Like 1/3 of something is .33333..... or 3/4 of something is .75 In my opinion, many folks just do not remember how to do this. Hope this makes some sense to you. Terry Joe Sprinkle (The old fuel mixing dinosaur)