Quote:
Originally posted by accwai@Aug 18th 2004 @ 9:00 PM
I think ideally, a correction factor should be calculated based on display vs. calculated lifetime mpg and then the individual tanks are corrected by this factor. That would provide both accurate lifetime and individual tank mpg, right?
Andy
|
It has taken me few months to understand what you were saying but you are exactly right.
Long term mileage calculated at the pump is accurate but single tanks are not due to fill inaccuracies. Dash gauges can be way off (my 2000 Vette's is about 10% high) but are a better way of compairing one tank to another. I don't know how you could figure out a correction factor for a new car's dash gauge in the short term so you would need to wait several tanks before entering data into the database unless you entered dash gauge mileage and sumbitted a correction factor later after the tank to tank inaccuracies averaged out. You or Jason would need to adjust those numbers after the fact which would get complicated. Complicated or no it would be the best way. I pay no attention to those best single tank figures because of the lack of a standard way of getting those numbers.
Now I can't decide how to enter my own numbers with my new HCH...
Since you have pointed out the best way it would be hard to settle on either of the other ways...
Personally I would not post a record single tank unless it used your best of both method.