
Originally Posted by
jut703
1. Fill up your tank (automatic, not sagad)
2. Record your odometer reading (and/or reset tripmeter)
3. Travel
4. Once you reach your destination, fill up again (automatic full tank again), take note of how many liters were filled up.
5. Record your odometer reading then log the total km traveled
6. Total km traveled divided by total liters equals your ACTUAL fuel consumption.
In your case, if you wanted an accurate figure for your FC, you should've filled up again in San Fernando, so you know how many liters of fuel you consumed for the total distance traveled. I'm pretty sure it's not 18.7 km/L.
One of my biggest pet peeves is people claiming really good FC figures, but basing it only on their car's MID only.