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54 1.6 hdi 110 fuel consumption change - Andygti
Hi im lookin for some advice. Iv only had my 206 GTI hDI 110 for around a month now. At first i was very happy with the fuel economy! The last few days whilst driving all of a sudden the fuel consumption drops to between 38-42mpg. (yes on instant MPG) when this happens the average MPG drops down and so does the miles left to empty! I drove home on saturday a 40mile journey with my girlfriend with me and drove very gentle i.e no hard aceleration or anything and sitting at 60mph and only avreaged 42mpg. I could average that journey 40mpg in a fiesta ST!!!!! I was getting high 50s to start of with.

I got this car to save money on fuel, So please help me out!

Any help will be apreciated thanks

{subject header made less vague, and some SHOUTING here and there amended}

Edited by Dynamic Dave on 28/05/2008 at 01:39

54 1.6 hdi 110 fuel consumption change - Dynamic Dave
Rather than relying on the cars fuel computer, (which at the best of times aren't always accurate), brim the tank, do some miles, brim tank again and whip out the calculator and do the math. Repeat a few times and then compare with what the fuel computer is telling you.
54 1.6 hdi 110 fuel consumption change - smokescreen
The instant computer isnt that accurate. Do consider conditions like head wind, traffic conditions and other major factors can also play havoc with your overall MPG.

When doing a 210 mile trip south, the instant computer stayed around the 45mpg mark. Brim to brim showed just over 51mpg despite those heavy head winds the car had to contend with.

So I would take Dynamic Dave's advice and do a brim to brim to eliminate the computer.
54 1.6 hdi 110 fuel consumption change - RichardW
It was probably regen-ing the FAP which may causes a short term spike in the consumption, and make it run slightly rough for 30 mins or so.