Why are my plugs all different colours?

[revhead]

any1 who tells you 98 is crap has no idea. nothing wrong with shell fuel either, some people should keep there mouth's shut on subjects they have no idea about.my 2c worth

you really should ,actually extract your head from your anus ,you know everything ,il call you god ,with the amount of research ive done on the fuel after the death of a really well serviced engine,tells me that you know everything ,nice to see your as rude as you are talented!l

the thing is ,your bulling style of mentality cost me an engine
on a ride a little while ago a fellas bike kept on burning out plugs,like every 80k,i told him irridium plugs and 95 ,bike hasnt missed a beat in 1 year, another mate has a 1983 katana ,and on that forum ,oh man you need to run 98 ,well lets say his 11oo ,is only running on 3x now bc of advice like you force at people ,,cmon mate ,98 is a thicker based fuel designed to dumb down an engine to burn slower to get you further ,yup i know zip ,e10 is only a blend it wil clean deposits out of your valve train and for drawing is moisture ,all fuels draw in moisture,personal experience ,i by mistake put 98 shell in my busa at khankoban ,cost me $3k for a new motor ,so dont try and preach to me inre-gard to the goodness of 98,BEEN THERE DONE THAT LISTENED TO BLOKES LIkE YOU BEFORE ,AND ITS COST ME ,FIND A HOLE AND FALL INTO IT1