All gasoline brands have both pure and, So the higher the ethanol content, the higher the octane. One may also ask, how many Octane is ethanol free gas? Even the 10% ethanol Premium fuel is only 91 octane. This means your car will perform slightly better … The higher the fuel octane rating, the less noise will be noticeable on combustion. Also, almost all gasoline in the US contains 10 percent ethanol. I had a 700AWHP evo on e85- lol so I know about ethanol. The 89 and 91 Octane would be dropping money because is meant for greater compression engines. Refiners usually blend ethanol with gasoline to help boost its octane rating—most gasoline in the U.S. contains up to 10% ethanol. After all, “premium” is always better than “regular,” isn’t it? It is not ideal for newer, high-compression engines. (Notionally it’s 94, but in practise it depends on exactly how much ethanol there is in the ‘up to 10%’ blend at any particular re-fill.) What should I comment on someone singing? What are the benefits of ethanol free gas? In addition, as Argonne National Laboratory states, ethanol reduces greenhouse gas emissions between 34 to 44 percent compared to gasoline. The short answer is, no, ethanol-free gasoline is not bad for your car. Does Hermione die in Harry Potter and the cursed child? Plus, it's an environmentally responsible choice. The octane rating of pure ethanol is 100, but when it’s blended with gasoline, it performs as if it’s 112. What is the difference between exclusive and selective distribution? The U.S. Energy Information Administration (EIA) estimates that in 2019, the 142.71 billion gallons of finished motor gasoline consumed in the United States contained about 14.16 billion gallons of fuel ethanol, equal to about 10% of the total volume of finished motor gasoline consumption. Gas with higher concentrations of ethanol is not. Yes, it is difficult nowadays to find gas that's not corn fed especially in certain parts of the country or during a specific time of year. Gasoline with 10% ethanol content is known as E10, and with 15% ethanol it’s known as E15. 93 is available at select Kum & Go locations. While regular unleaded is usually 87 percent octane, plus- and premium-grade fuels are more likely to contain 89 to 91 percent octane. E10 fuels are approved for usage in lawn mowers and outdoor power handhelds like chainsaws, trimmers, and leaf blowers. A difference of $0.73/gal or 27.5% more expensive. Baldwin Racing Engines discourages both practices. Most cars today can run on ethanol gas blends up to E15 (15% ethanol) and on non-ethanol gasoline. Gasoline with 10% ethanol content is known as E10, and with 15% ethanol it’s known as E15. My question for you all is your opinion on that. There is no way you're going to see a 27.5% increase in fuel economy by switching to ethanol-free gasoline. Two common octane ratings are 87 and 91. What cars have the most expensive catalytic converters? How much ethanol is in gasoline, and how does it affect fuel economy? Shell 91, (or V-Power 93) and most of the other brand "premium" gasolines do not have ethanol. Ethanol's effect on octane is not considered--these are ratings that are seen at the pump. On a test tube or olive bottle six or seven inches long, make a permanent line about two inches from the bottom. (If we’re being pedantic, it actually computes to E48.) E15 is only appropriate for use in Flex Fuel vehicles or a very small percentage of the newest vehicles. Asked By: Yi Stratmann | Last Updated: 10th May, 2020, No. So your lowest tier (usually 87 octane ) will have 10% to 15% … Similarly one may ask, what gas is ethanol free? The square yellow octane stickers you see on gasoline dispensers indicate the (R+M)/2 octane rating. 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