Blue Earth Gasoline vs Standard Unleaded

[G2IntegraB16A]

I am just wondering if anybody out there knows of any articles that compare Blue Earth Gasoline to the standard unleaded and if there are any reported negatives to using blue earth.... i have heard that it is bad for the engine, that it corrodes the motor faster than the standard unleaded would, is this true or just something people say..... so any information would be helpful.... its for a speech i have to give about different fuel types for cars and i know that people think that Blue Earth is the greatest thing but i just wanna find out if there are any negatives using it has on a car