Car Mileage

12
Factors Affecting Car Gas Mileage Cody Kustrin Weston McCollum

Transcript of Car Mileage

Page 1: Car Mileage

Factors Affecting Car Gas Mileage

Cody Kustrin

Weston McCollum

Page 2: Car Mileage

Purpose What Factors affect car mileage and to what

extent? Factors Examined

Drive Type Gas Type Weight

Page 3: Car Mileage

Data 122 Cars

70HPToyota Prius to the 285HP Chevy Suburban Drive type

Front (1) Rear (2) AWD (3)

Gas type Regular (1) Premium (2) Diesel (3)

Weight 2150 lb. Acura MDX to the 7270 lb. Ford Excursion

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Drive Type

5 10 15 20 25 30 35 40 450

0.5

1

1.5

2

2.5

3

3.5

f(x) = − 0.0506697032418794 x + 2.46221162496618

MPG Line Fit Plot

Drive Type

Predicted Drive Type

Linear (Predicted Drive Type)MPG

Dri

ve T

ype

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Analysis of Drive Type Regression Weakly Negative

Correlation, m=-0.0507

As drive type switches from Rear to Front MPG increases, AWD is the worse.

Rear wheel drive vehicles typically have more horsepower so the decrease in MPG is expected.

Drive Type

Average

Standard Deviation

One Standard Deviation

Front21.91463 4.581771 17.33-26.50

Rear18.35714 4.165238 14.19-22.52

AWD17.63636 2.838053 14.80-20.47

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Fuel Type

5 10 15 20 25 30 35 40 450

0.5

1

1.5

2

2.5

3

3.5

f(x) = 0.013551346012293 x + 1.04176758875377

MPG Line Fit Plot

Fuel Type

Predicted Fuel Type

Linear (Predicted Fuel Type)MPG

Fuel Type

Page 7: Car Mileage

Analysis of Fuel Type Regression No Correlation

between Fuel Type and MPG, m= 0.0136

Premium Fuel is more efficient, but that is almost completely offset by the higher horsepower engines in most cars requiring premium.

Gas Type

Average

Standard Deviation

One Standard Deviation

Regular 20.51807 4.740488

15.78-25.26

Premium 20.56757 3.201914

17.37-23.77

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Weight

5 10 15 20 25 30 35 40 450

1000

2000

3000

4000

5000

6000

7000

8000

f(x) = − 119.920683103598 x + 6098.72984441746

MPG Line Fit Plot

WeightPredicted WeightLinear (Predicted Weight)

MPG

Weig

ht

Page 9: Car Mileage

Analysis of Weight Regression Strong Negative Correlation between Weight

and MPG. M=-119.92 For every 119.92 lbs added to a vehicle it is

expected to lose about 1 MPG Takes more gas to pull heavier things.

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Conclusions Drive Type has a moderate impact on fuel

economy, front is higher than both rear and AWD.

Fuel Type almost no difference between gas mileage of cars using regular compared to those using premium. Diesel has the best gas mileage but costs about

$1 more per gallon than regular

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Conclusions Continued Weight has the biggest impact on fuel

economy other than horsepower. For every 120 pounds a car sheds it gains roughly 1 MPG Clean out your car on a regular basis to ensure

that you are getting the best gas mileage.

Page 12: Car Mileage

Any questions?