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Fueleconomy.gov.

Because maybe the data I enter can help someone when buying a car.

Also, fuelly's categories for each car are all boned, and viewing data by year/type is all weird on fuelly. The fueleconomy.gov categories are actually curated.
 

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Discussion Starter #3 (Edited)
Fueleconomy.gov.

Because maybe the data I enter can help someone when buying a car.

Also, fuelly's categories for each car are all boned, and viewing data by year/type is all weird on fuelly. The fueleconomy.gov categories are actually curated.
I use Fueleconomy My MPG site on my phone. Cant get the other to work at all.
Any tips on making sure I enter my mileage in Fueleconomy correctly? Should I round off the gallons for more accuracy?
Just wondering because they show I get only 37 mpg, my car says 42 average.
 

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Any tips on making sure I enter my mileage in Fueleconomy correctly? Should I round off the gallons for more accuracy?
Just wondering because they show I get only 37 mpg, my car says 42 average.
I enter mine to the third decimal (what the pump gives me). It calculates exactly like it should?

What data is giving you 37 mpg unexpectedly? Can you copy/paste those two rows from your log here?
 

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Discussion Starter #5 (Edited)
Ok, as you see, mileage is going down with the temperature, moderate city driving. Not pleased w this mileage.

Date Odometer Gallons Cost City Highway MPG Notes
10/31/2017 52390 8.23 19.58 80 20 -1 2.379 gal / added Chevron
11/10/2017 52668 8.058 20.14 80 20 34.499878 2.449 gal
11/22/2017 52961 8.06 19.5 60 40 36.352356 2.419 gal
12/08/2017 53269 8.558 19.93 80 20 35.98972 76�
12/20/2017 53566 7.875 18.03 80 20 37.714287 2.289 gal
12/30/2017 53846 7.454 17.88 80 20 37.563725 58� $2.3399/gal
 

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Nature of the beast.

Sam
 

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I mean that's just the way it is. Colder weather just lowers fuel mileage. There are lots of factors. Winter gas. Longer warm up times. Lower engine temperatures. Stiffer tires. Running the AC compressor for defrost. Lower efficiency batteries. Using the headlights more. It all adds up and we all get lower fuel mileage. It's just normal.

Sam
 

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Discussion Starter #10
I mean that's just the way it is. Colder weather just lowers fuel mileage. There are lots of factors. Winter gas. Longer warm up times. Lower engine temperatures. Stiffer tires. Running the AC compressor for defrost. Lower efficiency batteries. Using the headlights more. It all adds up and we all get lower fuel mileage. It's just normal.

Sam
Gotcha, makes sense as half of my driving is at night with the windshield defroster on.
Did get up to an average of 42 the other night though, full tank with AC off and lots of coasting in D (auto trans). Winter just hit here in South FL, mpg went down with the temperatures. Thanks.
 
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