....20% of 128 oz is 25.6 oz of oil. That works out to a 5:1 ratio.
I need someone to clear this up for me. when I add extra castor oil I'm not sure how much im adding. This is what I gather with the percentages. I use 15% nitro 20% oil. 128 OZ in a gallon. 20% of 128 oz is 25.6 oz of oil. That works out to a 5:1 ratio. Is there really 25.6 oz of oil in my gallon of fule. I have mixed a lot of two stroke gas in my life and just can't belive this is correct.
Castor oil is still better than two stroke oil made for gas and the smaller the engine the cooler it runs so, still doesn't explain why smaller engines need more oil.