Average fuel consumption over 100km indicator behaving erratic.

[Jim-p]

Hi all,

The 100km average fuel consumption on my 2011 T27 2.0 D4D has started to behave erratically, e.g., say on a 10km journey it can move .4 or .5 of a litre, say from 6.7 to 6.3 - usually down. Yesterday, it stepped it up a notch, on starting the car, I got 7 litres (surprised) and by the time I had finished my 10km journey, I was down to 5.6km. It used to be steady on around 6.6 before but over the last few weeks it's started to jump around.

Thank you!

J

[Jim-p]

FYI, this settled down again pretty quickly back to 6.5l per 100km. Not sure what was going on.

[TonyHSD]

Hi, 

not worth it to pay to much attention to these figures. Best to calculate average consumption when refill with fuel full tank and do the math shows the best. It could be various factors that triggered avg consumption to jump up and down.