For all the people running b16's, i was just curious to know how much miles your getting out of a full tank? At the moment it seems like 275 is the average for me. B16a2 in a 00 civic.

 

Can't go by how much it takes to empty your tank.

FIgure it out when you get to the pump. I get about 30mpg combined.

 

i have a del sol with a b16a2 swapand it gets only 22-25 mpg depending on how i drive.

 

For some reason ive only been able to put 9 gallons when im at empty.(gas light blinking and all) Seems wrong considering total fuel tank capacity for the 2000 civic is 11.9 gallons. I only noticed a difference when i changed the fuel pump unit at the top of the tank from a DX to a SI...

Thats the usual fuel consumption for me too.

 

Today's cars are designed for idiots. Fuel gauges are pessimistic in order to reduce the number of incidents where people run out of fuel. Temperature gauges are damped so that normal temperature fluctuations won't move the needle and send countless numbers of paranoid people to waste a dealer/repair shop's time.

Most cars will reach "E" and still have enough fuel left over to travel another 20-30 miles. There may be 1-2 gallons left in the tank after the fuel light or the needles hits "E".

To get a good idea of your mileage requires consistency. Fill up at the same pump if possible for at least two consecutive fillups. Try to keep your driving style and conditions the same. Reset the trip meter at every fillup. Take note of the gallons it takes to fill the tank, as well as the trip meter mileage. Do the math from there.