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Old 02-22-2012, 10:47 AM   #13 (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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90 day: 52.55 mpg (US)
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Thermostats get weak over time. I would swap yours if you don't hold 195 when warmed up. These diesels do better for mpg when up to full temperature. There is a guy on TDIClub experimenting with a 205 degree thermostat and he feels he has gained several mpg from that alone.
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https://ecomodder.com/forum/showthre...tml#post621801


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.
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