Hmm .... GM is partially owned by the US Government and when the C7 motor was in development they owned a larger share of GM. It's in their best interest to force ethanol on consumers.
While there are several new engines that will run fine on ethanol, they won't be in the marketplace for a few years.
I won't be using 10% or higher ethanol blends in my C7 or my motorcycle if I can help it. Ethanol is more CORROSIVE than gasoline.
What you run in your C7 is your choice.
The CRC Engine Durability study took duplicates of eight different vehicle model engines spanning 2001-2009 model years. All 16 vehicles were tested over a 500-hour durability cycle corresponding to about 100,000 miles of vehicle usage. A range of engine operating parameters was monitored during the test, including cylinder compression, valve wear, valve leakage, emissions and emissions control system diagnostics. Two of the engines tested on E15 had mechanical damage. Another engine showed increased tailpipe emissions beyond the allowable limit.
This study adds to the body of knowledge on the effects of higher blends of ethanol. Ten research papers have been published on the effects of increasing the ethanol blend ratio to E15 from the current E10. In a study by the Oak Ridge National Laboratory on the impact on fuel dispensers, all gaskets, seals and O-rings swelled and showed effects that can result in leaks. The National Renewable Energy Laboratory (NREL) tested samples of service station equipment, and found that, on average, about half of the equipment failed the compatibility tests. Another NREL study found severe damage to marine engines run on E15.
Automakers advise consumers to continue to follow the guidance on fuel selection in their vehicle owner's manuals. While automakers do market certain vehicles called Flex Fuel Vehicles (FFV) that can use up to 85 percent ethanol, these vehicles have been designed to tolerate the more corrosive ethanol, including changes to fuel pumps, fuel tanks, fuel injectors, engines, control systems, various calibration capacities, emissions systems and materials used.
DC Insider: E15 boosters attempt to mischaracterize the AMA’s ethanol position
Posted by: Rick Podliska on Wednesday, August 21, 2013
You have heard the old adage before: When you don’t have the facts that support your position, you attack the messenger.
Well, this is exactly what the boosters of the untested-for-motorcycles E15 fuel blend (15 percent ethanol by volume) are doing. They are trying to mischaracterize the American Motorcyclist Association’s position as blanket opposition to ethanol.
For example, a group promoting ethanol recently gave away free E10 gasoline to motorcyclists at Sturgis with a sign that read “Why is the American Motorcyclist Association (AMA) calling out just one [E15 fuel]? Read what else is wrong with AMA’s claims on E15.”
The latest attempt is to use the motorcycle racing community to further their agenda to get E15 into retailers across the country. The pro-E15 website provides an example of how a racing team uses E85 (85 percent ethanol by volume) in a “stock” motorcycle with a modified fueling system and that, everything works fine – which we applaud. After all, the top-speed bike was designed to operate on a high-percentage ethanol blend – and alcohol-burning racing motorcycles have been around for a long time.
The suggestion -- that if race bikes can run on E85, why worry about E15? – is quite disingenuous because competition machines are purpose-built and do not have to conform to U.S. Environmental Protection Agency emissions standards or satisfy the durability demands of everyday riders. Certainly an engine's internals and cooling and fuel systems can be designed to operate on high(er) levels of ethanol. But that really misses the criticism coming from the motorcycling community.
Which is this: 100 percent of the 22 million motorcycles and all-terrain vehicles on the road and trail in the U.S. today are not designed to run ethanol blends higher than 10 percent, and many older machines favored by vintage enthusiasts have problems with any ethanol in the fuel. And yet the opportunity to misfuel and damage an engine with higher ethanol blends such as E15 is very real.
It is time to set the record straight.
1) The AMA recognizes ethanol is one of many possible fuels. The key is that when our engines and fuel systems are designed for one type of fuel, we can't just put anything in the tank and expect there will be no problems. There has to be a ready supply of safe fuels for all motorcycles and ATVs.
2) The EPA has not tested E15 on motorcycle and ATV engines and does not approve of E15 for their use.
3) Use of E15 can void a manufacturer’s warranty.
4) The AMA wants an independent, scientific study on the effects of E15 on motorcycle and ATVs engines.
5) The AMA’s concerns has always been that riders might unintentionally put E15 in their fuel tanks due to confusing and/or unmonitored implementation of the EPA Misfueling Mitigation Plan and the possibility of residual E15 fuel left in a fuel hose, which could be as much as one-third of a gallon.
The bottom line for the AMA is this: Motorcyclists simply want safe fuels available at all fuel retailers and measures employed by retailers to ensure they cannot inadvertently put unsafe fuels in their tanks.
Get the facts on this important issue with the AMA’s E15 and Motorcycles Q&A.
Please be sure to share this with your fellow motorcyclists to counter the spin coming from the E15 lobby group that does not have your best interests at heart. The AMA is your voice.
Put Corn on my table, Not in my Fuel!!!