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Old 06-09-2008, 02:35 PM   #1 (permalink)
EcoModding Enthusiast
Join Date: May 2008
Location: Austin
Posts: 155

Silver Bullet - '03 Mazda Protege LX
90 day: 29.51 mpg (US)

Silver Bullet - '03 Mazda Protege LX
90 day: 37.06 mpg (US)

Blaze - '17 Ford Escape
Thanks: 23
Thanked 2 Times in 2 Posts
Arrow Juggling Cost of Mods with Payback Period

Hey guys,

I made this spreadsheet up for myself and figured that I should let the community use it.

IIFFF there are no errors, and all the results I get seem reasonable, then this spreadsheet should be able to tell you how many weeks of commuting it would take to recoupe the costs of aerodynamic modifications based upon how much you spend, the increase in your MPG, your old MPG, and some other variables.

For example. If I did pizza pan aero-hubs for $10 and it gained 2mpg over my standard 38mpg, it would take 13 weeks for me to recoupe the cost.

Let me know what you think.

Attached Files
File Type: xls ModificationPayback.xls (15.0 KB, 65 views)
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