Quote:
Dan Nicholson, General Motors’ vice president of global propulsion systems, said that GM could boost fuel economy in most engines by about 5 percent if U.S. fuel had the same higher octane gasoline as what’s being used in Europe. That comment was made during a conversation with Automotive News technology and engineering reporter Richard Truett, who examined how automakers and the EPA are looking at it.
Regular and premium gasoline grades are four to six octane lower than comparable grades of European gasoline, but the calculations are different and difficult to compare. American gasoline octane is calculated using averages from RON (research octane number) and MON (motor octane number). That’s done differently in Europe; for example in Germany, regular gasoline is usually 95 octane and premium is 100. It’s based on the RON scale in Germany.
http://www.hybridcars.com/boosting-octan...25-for-the-epa/
Everybody in the oil industry knows that RON is much higher than MOM. Our rating may be 1-2 octane lower than European, there is no way fuel economy can improve by 5% with that little increase in octane.
Dan Nicholson, General Motors’ vice president of global propulsion systems, said that GM could boost fuel economy in most engines by about 5 percent if U.S. fuel had the same higher octane gasoline as what’s being used in Europe. That comment was made during a conversation with Automotive News technology and engineering reporter Richard Truett, who examined how automakers and the EPA are looking at it.
Regular and premium gasoline grades are four to six octane lower than comparable grades of European gasoline, but the calculations are different and difficult to compare. American gasoline octane is calculated using averages from RON (research octane number) and MON (motor octane number). That’s done differently in Europe; for example in Germany, regular gasoline is usually 95 octane and premium is 100. It’s based on the RON scale in Germany.
http://www.hybridcars.com/boosting-octan...25-for-the-epa/
Everybody in the oil industry knows that RON is much higher than MOM. Our rating may be 1-2 octane lower than European, there is no way fuel economy can improve by 5% with that little increase in octane.
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