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Those companies are correct. The more I look into it, it seems it may be more connected to a factory foul up, that may leave an injector prone to failure. The theory is that the fuel is posing as a weak ground, causing accelerated electrolysis, and causing the coil to burn out. Ive heard the coil, however, is supposed to be completely sealed from any fuel. This would rule out the fuel as a grounding point, on a properly produced coil. If the coil was some how exposed to the fuel via that "factory foul up", coupled with the 12v the early style injectors always see as opposed to the 94+ style, you get the very much accelerated hydrolysis. Theyre were obviously design changes, so the "factory foul up" may have been fixed unknowingly, but i dont know. IMHO, this theory would lend support to the fact that some people have been running with ethanol for a long time with no problems, yes some run ethanol and with in a few weeks they have a dead injector. My .02
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