Quote:
Originally Posted by California98Civic
At the end of this video he claims a 10% drag reduction made a 2.5% highway fuel economy gain. Is he correct about that? It's maybe a 4:1 ratio, drag reduction to fuel economy at freeway speeds? Seems too simple to be true.
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The EPA Highway testing would indicate a more conservative savings that just straight,long duration highway driving.
The old school values are:
*10% delta CdA = 5% mpg @ 55-mph
*10% delta CdA = 6% mpg @ 70-mph
*I suspect that the 10% = 2.5% is actually for the Urban cycle.Journalists have reported things like this so many times in the past, so as to make readers/consumers believe that aero drag is essentially inconsequential.And without a rebuttal,they may go on believing it for the rest of time.
