
07-09-2005, 13:30
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A Legacy of Impact
 FRC #0234 (Cyber Blue)
Team Role: Mentor
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Join Date: May 2001
Rookie Year: 1999
Location: Indianapolis, IN USA
Posts: 2,579
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Re: Gas prices and you
Quote:
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Originally Posted by KenWittlief
another way to look at this - if you have a car and a job, figure out the total cost of driving your car (per mile)
and figure out how many hours you have to work for each hour you drive your car
then you can calcuate your real 'speed' when you drive
for example: lets say you drive one hour a day to and from work, at 65mph
speed = 65 miles / 1 hour = 65mph
but your car is costing you 40 cents a mile to drive (total cost like I mentioned previously), then to go 65 miles costs you $26.
if you make $7 an hour at work, then for each hour you drive you are working $26 / 7 = 3.7 hrs
add that back into the speed equation. To drive your car 65 miles takes an hour + you must work 3.7 hrs for each hour you drive:
65 miles / (1 + 3.7) = 13.8 mph (real speed)
Ironically, the more expensive your car is (ie, Mustang, Lexus...) the lower your real speed will be!
I have to point out, a healthy young adult can easily average 15mph on a 27" ten speed bicycle (and you can usually find them at garage sales for $25).
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The computer in my car calculates all this stuff for me. My average speed seems to be around 26mph and my gas milage seems to be running at about 28-30mpg right now.
I've been experimenting with my driving habbits between tanks of fuel and I have noticed a real difference. If I am easy on the pedal: not trying to launch off, using the brakes all the time, doing a lot of coasting, and using cruise controll on the interstate; it makes a heck of a difference (21mpg).
Adjusting your driving habbits can do wonders for managing fuel consumption and extending the life of your car.
I lub my new Pontiac G6 GT.
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