Ok I want to try this stuff, but here is my problem. I have a Jiffy Legend that is 20 some years old and requires a 24 to 1 fuel/oil mixture. True Fuel only comes in 50 to 1 and 40 to 1 ratios. Can I just add more oil to the True Fuel or is this not a good idea ? 24 to 1 ratio requires 5.5 ounces of oil and 40 to 1 requires 4 ounces of oil. Thanks!