Recetly I changed both radiator hoses and a new thermo and flush and filled the radiator.I had full tank of gas and i got about 200 miles in the first half and about 120 in the second half so about 32 mpg for full tank. So i decided to fill the tank up to about halfway mark and it only got 24 mpg. Is there any one else who had this problem? should i just fill it up to full tank all the time and just drive to half tank and refil?

 

Fuel mileage is calculated using hard numbers. Miles driven divided by gallons used. (gallons used in this case is what the pump at the gas station says you put in.)

The gauge is only an approximation of what's in the tank and can vary considerably depending on a whole lot of variables.

Don't over-complicate things.

 

but that does not explain how i got around 36mpg in the first half of full tank and only 24 mpg in the second half of close to 6 gallons

 

Thats what he his trying to tell you, it isn't half because the gauge isn't accurate.

 

too many times.. vTaakKKkK

 

The fuel meter is never correct with how much is left on the tank.
F|----_____|________|E

Dashed area is 100 miles and the rest is 200 miles on my civic(city miles).

 

To follow-up on what Perfectionist said. Why are people measuring fuel mileage base on assumptions instead of hard facts? The steps to get accurate gas mileage is pretty simple.

1. Fill-up all the way.
2. Set trip odometer to zero.
3. Drive around until almost empty.
4. Fill-up all the way again.
5. Now take the miles driven and divide that by how many gallons you filled it up with in step 4. Ex: I drove for 300 miles and it took me 10 gallons to fillup. 300/100 = 30 mpg.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Perfectionist &raquo;</TD></TR><TR><TD CLASS="quote">Fuel mileage is calculated using hard numbers. Miles driven divided by gallons used. (gallons used in this case is what the pump at the gas station says you put in.)

The gauge is only an approximation of what's in the tank and can vary considerably depending on a whole lot of variables.

Don't over-complicate things.</TD></TR></TABLE>

 

ok i got you. thanks for replying.