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Old May 29, 2008 | 10:07 PM
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Default Ethanol

I now have to buy 10% ethanol and have noticed I'm getting 2-4 less mpg. Is this the nature of the beast or can a tune improve mileage?
06-Z51. This begs the question "am I using food to get less mileage".
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Old May 29, 2008 | 10:09 PM
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Well yes, sort of. There is less energy in a given amount of ethanol than gas. But I wouldn't expect the mpg difference to be that great. Maybe I'm wrong thinking.
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Old May 29, 2008 | 10:09 PM
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I have noticed a definite difference in my Tahoe (from 17.4 to 16.1 mpg after I started using the ethanol mix. To me that is a huge thing, with the price of gasoline being what it is.
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Old May 29, 2008 | 10:13 PM
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I made a round trip to Dallas and back a month ago and noticed the same thing. As I went through states that had 10% ethanol my mileage started dropping. On my return to FL where I usually don't get ethanol my mpg came back up. Not worth the price difference to me.
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Old May 29, 2008 | 10:24 PM
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Originally Posted by mikesul
I made a round trip to Dallas and back a month ago and noticed the same thing. As I went through states that had 10% ethanol my mileage started dropping. On my return to FL where I usually don't get ethanol my mpg came back up. Not worth the price difference to me.
FYI the Florida legislature has now mandated 10% ethanol in everything.
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Old May 29, 2008 | 10:27 PM
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I thought 10% ethanol has been in gas for years now.
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Old May 29, 2008 | 10:30 PM
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Let me see if I got this right.
Half the world is starving soooo we take food and convert it to fuel so we can get less mileage. In the meantime we have untold millions of barrels of oil we wont drill for. What a country!
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Old May 29, 2008 | 10:32 PM
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Originally Posted by JTS97Z28
I thought 10% ethanol has been in gas for years now.
Hasn't been that way in Florida till recently.
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Old May 29, 2008 | 10:35 PM
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Originally Posted by JTS97Z28
I thought 10% ethanol has been in gas for years now.
In our area (IA, IL, etc.) that may be a true statement but not in other states, especially in the south.
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