Quote:
Originally Posted by Tcoat
Every fill up is a reasonable time to reset since it give you enough mile/kilometers to get a decent average. As long as you are doing the same driving each time though. If I got gas and reset and drove around stop and go traffic it will give me totally different reading than if I reset and went on a 300 mile highway road trip. Both would be accurate according to the type of driving but may not be my "normal" average.
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My Tacoma displays "Average" and "Tank Average". They are usually very close, unless the current tank has been through a lot of idling, or a lot of highway time.
I also find the live fuel display useless, although I would love to be getting the 152mpg or whatever it displays on decel.
I also hover right around 27 on the average display, manual trans with DD/spirited driving use.
And since this is in the Warranty category... We deal with this complaint all the time at work. "My car doesn't get the fuel economy printed on the sticker!" Do you drive around with extremely light and even throttle? With the windows up, AC off, radio off, lights off, absolutely nothing turned on but the engine? Probably not. So just drive the car and be happy.