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Old 05-21-2014, 11:39 AM   #112 (permalink)
COcyclist
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Join Date: Dec 2007
Location: NW Colo
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TDi - '04 VW Golf
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Quote:
Originally Posted by mcbota View Post
Also I am thinking if is worthy to change the wheels, in this moment I have 215/55/16 and I want to change with 195/65/15, but I am not sure how much I will gain!
In my opinion it would take a long time to recoup your investment unless you need to buy tires because the 16s are worn out, and you plan to keep the car a long time. It may improve the ride slightly. However, I would recommend buying a ScanGuage. It will give you instant and current fuel economy and help educate you on eco-driving. (I tried an UltraGuage and it does not work well with the diesel)
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Quote:
Originally Posted by freebeard View Post
The power needed to push an object through a fluid increases as the cube of the velocity. Mechanical friction increases as the square, so increasing speed requires progressively more power.

Last edited by COcyclist; 05-21-2014 at 11:45 AM..
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