3% is going to give you a much more significant octane boost than a bottle of the commercial products available, you're unlikely to gain much going to a higher percentage.
If ever you go for much higher power a 10%+ mix will be very handy, on a ct9 (hybrid or not) you're never going to hit the boundaries.
Sorry for hijacking Phil but where do you get the methanol? I can only get 95 ron petrol down here and kind of sick of octane boosters + finding ti hard too source them locally now..!
Does anyone use NF octane booster? Ive been on the scooby forums quite alot and there are some good results to be had from it when it comes to mapping. Ive always used a dash in my starlet and subaru. It will treat 6 tanks on a starlet easily. I think some tuners use it with meth as well.
I'm not to worried about mapping the car on it, the stuffs going cheap, so I'll use it to add some safety to the car when racing it as an alternative to an octaine booster.
I'll eventually switch to dedicated race fuel next year.
Physically impossible to have a significant improvement in octane over SIX tankfuls out of one bottle, irrespective of what's in it. Lots of marketing wordplay in that description, I'd like to see some hard numbers like octane point increase when diluted in 30 litres of 95 octane. IMO you're always going to be better off mixing your own from a known quantity, who knows what's in this stuff...
E5 and E85 are 5% and 85% Ethanol respectively. E5 you can run in anything and in terms of octane is usually equivilent to your standard premium blend, at least here that's 95-96 RON. E85 has an octane rating of approximately 110RON depending on the other 15%. Highly knock resistant and runs cool, however you need to inject a great deal more to get the same bang!