Quote:
Originally Posted by Joecooool
Q. Are Yamaha engines compatible with E-10 fuel?
A. Yes, all current models as well as most engines built since the late 1980s have been designed with fuel system components that are tolerant to fresh fuel containing ethanol up to 10% ethanol.
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The key word in that answer is tolerant. Being able to tolerate something most certainly doesn’t mean it’s what is optimal. Many people don’t have problems using e10% fuel, right up until the point when they do. The only way to be certain you won’t have ethanol related issues is to use ethanol free fuel. I use ethanol free fuel because I can’t tolerate showing up at my Villages home, only to find out my carts fuel delivery system is gummed up with ethanol residue.