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Should gas mileage drop drastically with cold weather?

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Offline Bobzooki

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Re: Should gas mileage drop drastically with cold weather?
« Reply #15 on: January 06, 2006, 06:47:44 AM »
I live in Colorado.

We have HUGE temperature swings all through the year.

I see NO mileage differences related to temperature.

HOWEVER.

Several years ago, they used to sell oxygenated fuel (with Ethanol or MTBE) in the winter months, and non-oxygenated fuel in the summer.  Oxygenated fuel = a guaranteed drop in mileage, of 10% (from 30 to 27 MPG).  Now they run it year-round here.
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Bob

Tahoe 24' Fish-N-Fun Tritoon
115 HP Mercury outboard
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Offline AJMBLAZER

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Re: Should gas mileage drop drastically with cold weather?
« Reply #16 on: January 06, 2006, 02:21:54 PM »
10% is right about the loss my wife and I are seeing right now with winter gas.
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Offline echojeff

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Re: Should gas mileage drop drastically with cold weather?
« Reply #17 on: January 17, 2006, 07:53:24 PM »
Ok been running 28 psi, and this last tank went from 23 to 25mpg. This is the second tank at 28psi.  The first one I got 21mpg, but that trip had lots of wind while trying to drive at freeway speeds(75mph).
I have yet to do the chalk test.  I have noticed the ride is stiffer now now that I have run it awhile.  (especially on dirt roads). I will keep it here for now. 
Jeff
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