This is math anybody could do but i did it all today and figured i would share it. Hope somebody finds this interesting!
Use at your own discretion, i haven't found a downside to using this but i have heard others warn against it so look up some facts make up your own mind first. also this is just one mixture that i was figuring for myself, your own numbers can be added in easily, my purpose is to show and explain the formula or give a general idea of the change toluene does.
Toluene=114 octane
Premium(by me)=91 octane
Formula= (x*91)+(y*114)/x+y=desired octane
where y= the amount of regular gas in mix
and x= the amount of toluene in mix
if say you want a 95 octane rating in 15 gallons of total mixture the formula becomes: (y*91)+(x*114)/x+y=95, y=15-x.
skipping ahead a little: 1365-91x+114x/15=95
comes out to: x=2.61
plug x into the y formula you get: y=12.4
So to get 15 gallons of 95 octane you need 2.61 gallons of toluene and 12.4 gallons of premium gas. (+whatever is in your tank though too keep in mind.)
A little side note that is about 4.52ish a gallon for 15 gallons(with that mix at my local gas prices and changes with %toluene).
I know a lot of areas have 93 or 92 octane premium too so you can easily just take this formula and change the 91 to whatever your gas is. Also getting 95 octane from 91 gas is adding 17% toluene which is a decent amount. Again do some research on it, from what i hear 30% is about the top you'd want, i cant personally speak to that so do a little research. This is my first writeup Hope somebody finds it useful! if anybody spots any mistakes let me know, i know i have it right on paper and i don't see any copying mistakes but you never know.
There i got the excel spreadsheet in the zip folder if there is a better way let me know, but its pretty easy like that. Lotsa time into that let me know what you think!
Only change the numbers in the top part. The bottom part of the spreadsheet are all formulas reliant on the top numbers. Also on the top numbers, you can only have 1 number be 0 at a time. You must enter a value for all but one and that one has to be 0. Thanks!
