What if he is traveling cross country?


mike hunt



Kathy and Erich Coiner wrote:
>
> 1. Fill Tank.
> 2. Record mileage.
> 3. Drive car till near empty.
> 4. Fill tank again. Use same pump at same station. Let the auto shutoff
> system work. (Do this on initial fillup too. Record gallons to fill
> 5. Record mileage.
> 6 mpg= (mileage step 5-mileage step 2)/gallons used step 4.
>
> Erich
>
> "Mark A" > wrote in message
> ...
> > Newbie" > wrote in message
> > ...
> > > It may seem like a superfluous question, but what is the best way of
> > > calculating what mmg yuor vehicle is getting? I have my miles reading
> > > of course, and I can record how much gas I put in, but there was some
> > > gas already there in the tank, and how do I know what was traveled on
> > > how much gas? If you have a good system, please share!
> >
> > You have to do it over a long period of time (many tank fulls) and then
> > estimate the beginning fuel level the very first time. Any error in
> > estimating the beginning fuel level the first time will be minimized when
> > looking at 10 or more tanks of gas to calculate the mileage.
> >
> >