Quote:
Originally Posted by Mr_Draco
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*Scratches head*
For those that ain't well edumacated?
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Ethanol has less chemical energy than gasoline but helps with oxygenation so gasoline burns more completely with a gas/alcohol blend, generally evening things out --especially with rich-running OEM tunes (which intentionally don't aim for complete combustion, preferring engine safety and unburned hydrocarbons over increased efficiency and oxides of nitrogen.)
Some forum members are reporting slight personal gains in fuel ecomony while others are reporting slight drops.
Make more sense?