Originally Posted by
Fagin
Mmm.. I'd accept that perspective if you're mixing whilst filling, but if you mix outside of the car it's perfectly doable, but I understand your logic certainly for car filling.
Totally agree on your last point.

I'm not talking about uneven percentages. Im saying for example that a 50/50mix you cannot guarantee both fuels will mix 100%
You could have pools of methanol and petrol that have not mixed properly
many people do use the 20% though and no doubt there are inaccuracies when they are filling up.
It isnt a route I'd take for a road car. I'd sooner inject methanol separately than rely on mixing.
Pouring it into the petrol tank on a road car, 90% of the time it's just getting wasted unless you drive like a maniac