Fuel Saving Tips
Contrary to an earlier tip, your speedo will probably read faster than your GPS, this is because in some countries it is illegal for your speedo to read less than actual speed, but can read up to 10% faster. To allow for inaccuracies in the equipment most speedos are set to read faster so that they can never read slower than actual. Bear in mind also that the speedo doesn't have to match the odometer, and that the variances are different at different speeds. For instance, my speedo reads about 10% faster at all speeds over 40mph compared to GPS, but my odometer says i've travelled less distance than my GPS says.
posted by Mytheroo on September 14, 2010
this tip works for 68% of voting Fuelly members.