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16-07-2009, 12:25 PM
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Regular Member
Join Date: Jun 2009
Location: Melbourne
Posts: 66
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Many of us have been quoting the average fuel consumption in our WS Fiestas, as calculated by the car’s trip computer (see http://www.fordforums.com.au/showthread.php?t=11263743). Has anybody compared these values with a simple manual calculation (i.e. using the distance travelled and the actual amount of fuel pumped into the tank)??
For the last few tanks of fuel, I have been resetting the odometer and average fuel consumption on the trip computer. My trip computer had been showing me what I thought were awesome fuel consumption figures (5.7 – 6L/100km!), averaged over a full tank, and doing mainly freeway driving. However, after doing the manual calculations, I have been very disappointed to find that the fuel consumption is consistently being under-estimated by about 10-15%!!! Although 6.5ish L/100km is still pretty good, I wonder if this is a scam by the manufacturer to make us feel like the car is more economical than it really is. Has anybody else experienced this? |
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WS Fiesta fuel consumption calculation
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