Originally Posted by HONDAMAN174
Now, some facts to remember, is that e-85 burns hotter than normal gasoline and it requires 20% more product to get the same amount of power. So although it may be a little cheaper per gallon, you are burning more fuel negating the $$$ savings.
Depends on the price. When E85 is 20% less than the standard E10, it is a wash. And if your vehicle is made to run on it why not use it and support an american jobs rather than foreign oil?
Please don't start the debate about ethanol reducing the supply or raising the price of feed or food: Ethanol subsidies have expired, corn prices are the lowest they have been in 3 years, and they are still able to produce ethanol for a profit (there is demand).
And please don't start the debate about it taking more energy to produce than you receive. It simply isn't true. Modern farming practices have increased yields with less energy inputs every year. Fertilizer use has declined ~50% per bushel in the past 30-years. Ethanol plant efficiencies have also increased - most producing 120%+ of their design capacities. And ethanol plants also produce valuable co-products for feed and alternate energy sources.
I have a 2007 Jeep and a 2011 GMC that are both Flex Fuel and can run on anything up to E85 and I haven't had any issues using it. I use it when the price difference is at least 15% (which has been about 50% of the time, in Iowa).
I believe that 20% is a maximum drop in fuel efficiency when using E85. I've found it to be ~15% less in both of my vehicles. The drop is less when towing compared to towing with standard E10.
It is also a proven fact that ethanol burns cleaner than gas. Even when you factor in the loss of efficiency, ethanol reduces greenhouse gas emissions by over 30% compared to gasoline. Ethanol is non-toxic, water soluble and quickly biodegradable. Say that for oil.
All that said, I wouldn't use it in any engine that it wasn't made for. Especially engines that are not regularly used - like lawn and garden equipment because it can gum up carburetors when it sits for longer periods of time. If used regularly E10 and maybe even E15 are fine.