I again checked on the latest petrol consumption of my car only to find that it had increased substantially. On 03/10/2009, before going to Chemor for a wedding reception, I had filled up the tank in Subang Jaya when the meter read 17386 km. The greater part of the to-and-fro trip was on the PLUS highway but I had also travelled on the trunk roads in the Chemor area and a few kilometres in the village area. On the way back, I dropped by at my daughter's shop in Bukit Beruntung before going back to the apartment. I decided to wait a few days before re-fuelling. So today, at 01.00 am, I refuelled at the Shell station in Subang Jaya and the meter read 17855 km. I had thus travelled 469 km and the petrol used was 54.29 litres. The petrol consumption rate was therefore 8.6388 km/litre or 24.403 miles per gallon.
It should have been anywhere between 26 t0 29 miles per gallon as in my previous tests. I attribute this increase to:-
(1) my aggressive driving technique - too much acceleration,
(2) something was really wrong with the injection system and
(3) fuel evaporation - since I left the car parked for 5 days before refuelling. A proper fuel consumption test should be done within a shorter duration of time as in my previous tests. The ambient temperature for the past 5 days had been above 30 degrees Celsius.
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