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MPG in Minnesota

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Old Jan 31, 2008 | 08:12 AM
  #1  
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JK Freak
 
Joined: Jan 2008
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From: Minnetonka, MN
Default MPG in Minnesota

I thought I'd post this information so people can compare.

I have an Excel spreadsheet I'm using to track millage and daily temp.
Our average temprature has been +9.4F for the last 2 weeks.
For the last 2 weeks I've averaged 16.46mpg with my JK 08 - 4 door.

You have to figure the stop-n-go traffic where I drive and warmup at below 0F in the mornings. Lowest was about -17F

If anyone is interested in the spreadsheet and where/how I get my temp data PM me and I'll get you the information.

BTW get your weather information from NOAA this is the
National Oceanic and Atmoispheric Administration website, it has so much cool information.

http://www.noaa.gov/wx.html

Sam.
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Old Jan 31, 2008 | 08:40 AM
  #2  
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Are you trying to determine some type of cause-effect within regards to mileage and temperature?
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Old Jan 31, 2008 | 09:48 AM
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JK Freak
 
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From: Minnetonka, MN
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No just tracking mileage but temp makes a difference in mileage.

Changes in mileage can tell you a lot; a sudden change should raise a flag about maintenance. It helps measure the health of any vehicle.

Example:
If the air cleaner is getting durty your mileage will start to go down.
A tank of bad gas will cause the mileage to drop.

In the same workbook on a different sheet I track maintenance.
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Old Jan 31, 2008 | 11:02 AM
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Yes I agree. What kind of swing do you see with the temperature change?
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Old Jan 31, 2008 | 11:36 AM
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Old Jan 31, 2008 | 11:51 AM
  #6  
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JK Freak
 
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From: Minnetonka, MN
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Originally Posted by tgrt
Yes I agree. What kind of swing do you see with the temperature change?
It went to a high of +36F on January 29th and a low of -13F for a 49F swing.
I started it in the morning at -13F and left work it was about +5F. I've seen
70F swings in the past +50F and down to -20F in Duluth, MN. I've started cars in -30F after -20F it really doesn't mater how much colder it gets.

The manufactures send test cars here to see how they perform in the crazy weather.

My JK has started right up even at -18F I let it run for 5 - 10 mn before moving it. It's stiff for a few blocks so I just get above an idle until it warms the joints and springs. I know people who have ruined engines by starting and going without this warm up.

When I was 16:
My dad put a quart of oil out in -25F and let it set all night, he brought it inside the house the next morning opened it and turned it upside down, nothing.
We set it on the counter for half an hour, the first thing out was water that had condenced on the top of the frozen oil. Condenced out of the moisture in the air.

This is where temprature swing comes in to play you have to let the engine warm up. I will have the dealer change the oil at 2-3000 because of the cold weather and stop and go driving.
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