This may be old news but I think it is important enough to post again:
http://www.youtube.com/watch?v=ceW9Nc1hVHU&feature=share
I have had trouble with the diaphrams in my 630 automatic fuel shutoff and we can expect many more problems with our steel fuel tanks, steel fuel tanks, cast iron carburetors, and gaskets with E15. I can't see why we need E15 with the current glut of oil from North Dakota and Canada.
http://www.youtube.com/watch?v=ceW9Nc1hVHU&feature=share
I have had trouble with the diaphrams in my 630 automatic fuel shutoff and we can expect many more problems with our steel fuel tanks, steel fuel tanks, cast iron carburetors, and gaskets with E15. I can't see why we need E15 with the current glut of oil from North Dakota and Canada.