Measuring fuel consumption..

[Gantan88]

I have been trying to get an accurate fuel consumption figure from my car.

 

The way I measure is by resetting my trip-meter when I top up petrol. The next time I visit the pump, I will use the distance done from the trip-meter divide by the number of litres that went into the tank. (km per litre)

 

The above method is good BUT how do I know if all the pump nozzle will trip(cut-off) at the same level? Do I really have to fill until i can see petrol almost at the brim? I know the latter is not recommended.

 

Any better method?

 

 

What i did is this:

 

1. Drive until the needle reach 'E' and the fuel-low light comes on. (Let your car be stationary to determine this because when u r driving, the light will come on and off intermittently sometimes as petrol inside is not in a 'calm' state and it will not be accurate)

 

2. Drive to petrol station, as short distance as possible. Fill up full tank. Take note of the litres pumped as stated on the receipt. Reset tripometer to zero. Start driving.

 

3. Drive until your needle reach 'E' again - as per described in step 1. Take note of the mileage run on the tripometer. Take (mileage run) / litres pumped as recorded in step 2 to get the ?km run / litre.

 

 

What u did is u r depending on the nozzle automatic cut off - which may not be the same everytime u pump and at different petrol station.

 

What i am doing is using the actual litres of petrol pumped into the tank. Should be more accurate this way.

[Wishcumstrue]

I have been trying to get an accurate fuel consumption figure from my car.

 

The way I measure is by resetting my trip-meter when I top up petrol. The next time I visit the pump, I will use the distance done from the trip-meter divide by the number of litres that went into the tank. (km per litre)

 

The above method is good BUT how do I know if all the pump nozzle will trip(cut-off) at the same level? Do I really have to fill until i can see petrol almost at the brim? I know the latter is not recommended.

 

Any better method?

FC monitoring can be more interesting iF your ride has Average km/h reading.

Like the average FC monitor in some ride, this one measures your avg speed in a given milage. it will give u the rough idea of city vs hi way driving, which is one of the major factor in FC.

[Yaloryalor]

I have been using the same method as you mentioned for the past few years! Rough estimation ok lar. If you really wan more accurate then average out the FC for the same car using same method and monitor in year time.

[Veryfree]

try sending this question to Mythbusters. there are many ways that affect fuel

usage. if you drive a sedan, there isn;t much differences within this cat.

[Pskvin]

the better way is ....

 

1) every time the empty tank warning light up, try to remember/record the distance u have traveled, then reset yr mileage to 0, take yr time to fill up yr tank .

 

2)try every time to fill up the amount of petrol for easy calculation.

 

regards

[Tay107]

i always fill the petrol almost at the brim.... so at least that is more accurate than the pump nozzle auto cut-off.

 

when auto cut off if u try to press again it cut off again so how many time u repeat this till see patrol overflow out or it will not overflow????

[Auron]

first time it will auto cutoff. then the pump attendant will manually fill the petrol until i can see the petrol reaches to the brim.

[Tay107]

how is manual fill??? is there bypass ???

always when auto off there is no control it keep cutoff last night I even try to pull out abit still cutoff and petrol splash out dono it will spoil the paint