No point as to get methanol to work it has to be a really high combustion and you need to use twice as much as petrol, so adding a little to your fuel will do f**k all. Well it will run clean and cool.
read this and then tell me you want to play with methanol http://www.seatcupra.net/forums/showthread.php?t=360226
if its not a good idea then why do the evo, impreza and skyline boys swear buy 10 or 20% to a tank.