umm, hows this possible?

[Compaq888]

See, now I'm the same with you. Because I erased the 2 tanks where i was speeding like crazy my mpg went up .5mpg

[Matt Timion]

I'm unsure what good erasing the gaslog entries will do. In the long run it will all work out anyway, especially since the next fill up will average out the previous one.

[Compaq888]

Originally Posted by Matt Timion

I'm unsure what good erasing the gaslog entries will do. In the long run it will all work out anyway, especially since the next fill up will average out the previous one.

He used the pump error to boost his mileage. I used to do it too but the only person you screw is yourself

[Matt Timion]

Originally Posted by Compaq888

He used the pump error to boost his mileage. I used to do it too but the only person you screw is yourself

The pump error will work the opposite way the next time around though. It will average itself out. Assuming this is true removing the pump error will actually hurt your gas mileage.

[Compaq888]

Originally Posted by Matt Timion

The pump error will work the opposite way the next time around though. It will average itself out. Assuming this is true removing the pump error will actually hurt your gas mileage.

so that time I got 43mpg twice wasn't pump error???

[SVOboy]

I think if you compare a .3 gallon fill up to a 10 gallon fill up, those two together will get rid of most of the pump error.

[Matt Timion]

Originally Posted by Compaq888

so that time I got 43mpg twice wasn't pump error???

I never said it wasn't a pump error. I said that the next fill up will average out the error.

[MetroMPG]

another factor to consider at this time of year is thermal expansion in the fuel (cool nights, warm days - at least around here). it'll be particularly apparent when you try to fill an already full tank if the fuel has expanded at fill-up time.

if you want to calc the actual temperature/volume differences, go here for info: i used to have a figure handy (x% vol. change for every n degrees change, but i've forgotten).

http://www.users.qwest.net/~taaaz/AZgas.html#HOW%20GASOLINE%20IS%20SOLD%20IN%20CANAD A

[krousdb]

Originally Posted by Compaq888

See, now I'm the same with you. Because I erased the 2 tanks where i was speeding like crazy my mpg went up .5mpg

OK, so does than mean that everyone can erase thier two worst tanks?

[SVOboy]

OK, so does than mean that everyone can erase thier two worst tanks?

Certainly not.