How to know your fuel consumption kilometer/liter

[preno]

hi newbie here.

just want to ask how do you estimate your fuel consumption.

there are 12km/L, 15km/L, etc.

how do they know it.

do you have a device or it is just plain estimation?

kasi ako baka sukatin ko lng gastos ko sa gas tapos sukatin ko din sa Google Earth ung tintravel ko (km) para malaman ko yung gas consumption

Thanks!!

[vinj]

Fill up your tank to full.
Reset your odometer.
Drive
Refill again to full.
Compute by dividing the distance travelled for that particular tank over the amount of litres filled to full again.

As for me, over time i can also estimate how my consumption is by the movement of the gas gauge on a car that im familiar with over the distance i've travelled.

[uls]

before magpa-gas tandaan ung reading ng fuel gauge (let's say half tank)

fill up X liters. tandaan ilan liters (let's say 10 liters)

set km reading to zero

drive

pag balik ng fuel guage sa half tank, look at km reading

let's say 70 km bumalik sa half tank

so 70 divide by 10 = 7 km per liter

[preno]

ayun. salamat ng madami
kala ko kasi sasabog kotse ko kapg nireset ko odometer eh. hehehehe