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Originally Posted by birchman2
Our cars might be closer than we think although we can't prove it. A neighbor in San Pedro tells me that their Prius display calculates mpg to high compared to manually. Our HCH II do the exact opposite and calculate to low. If the display numbers are entered in the database for each car then it would be alot closer. Normally with my car there is a difference of about 2.5mpg. This could be the difference just a thought. 
My other half states that she would buy a HCH II because the EPA vs actual is closer to what is advertised. According to EPA the Prius should be at 55.5mpg while the HCH II should be at 50mpg.(As she looks over my shoulder) |
We have a provision for members to indicate which method they use when posting tank data. I use the lower "calculated at the pump" figures which is indicated in the database on the lower right by this:
Calculation Method: By Hand
If you get really bored you could test your theory by checking the percentage of members in each group that use each method.