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post #1 of 3 (permalink) Old 20th June 2008 Thread Starter
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08 Megane DCI 106 MPG?

My missus bought an 08 Megane 1.5 DCi (106) for 2 reasons, first was the dealer told her the road tax was 35 a year, secondly the lure of 50+mpg.
When she got the car in March the road tax was 120.... massive dealer faux pas, they didnt even know the addition of the sunroof takes the car into the next tax bracket! anyway we got that sorted and reimbursed to the tune of 2 years free servicing.
MPG however, she's only getting around 42mpg combined, i realise the engine is still new at about 1200 mile on the clock but the dealer has told her not to expect any more than that. I never take much notice of what the manufacturer states for MPG because its nearly always wrong, but Renault say combined of 62.5mpg so i'd expect somewhere in the region of mid 50's. Her 05 1.9DCi got 43mpg round the town! My 57 2.0 TDCI Mondeo gets 45mpg combined (engine is still relatively new on that too, <6000 mile) and thats a huge heavy car!

Anyone care to comment on what their 1.5 (106) is getting?
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post #2 of 3 (permalink) Old 20th June 2008
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I can't believe they mis-sold you on the road tax that is just so unbelievably stupid

Someone else posted how the "manufacturer figures" are actually independently verified following a comon testing process. I'm inclined to believe this when you consider what they feed into - you literally can't "just make them up". Which is not to say they aren't a best case scenario...

Also, ignore the renault tech - sounds like you've got a dud there. Clearly if its quoted at 60mpg you should if only following certain behaviour be able to get close if you try.

The best thing to do is reset the mpg meter every now and then and find when the mpg is good and bad. She might just be driving in at too low or too high revs for intance. My 2.2 will easily return 50mpg at 50mph in fifth, and about 44 at 85 in 6th. If the little ol meggy can't do something similar then something is definitely wrong.

Watch that mpg meter and reset it if it stops moving (the lagII doesn't have constant instant readout but I'm guessing a new car should have - the lag has to be reset after a distance because it only gives an average).

Accelerating up a hill I can easily knock it down to 20mpg. If you do that for a while you'll kill your average.


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post #3 of 3 (permalink) Old 20th June 2008
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Also, different cars respond differently to styles of driving. When I first got the Lag, I very rarely knocked it down a gear climbing hills, because I thought a diesel, even a non- turbo one would benefit from revs being kept low, however in reality that has an awful effect on consumption in this car - if I knock it down a gear and allow the revs to climb, I can easily get extra 10% of miles out of the same amount of fuel because I'm not actually pushing it so hard.

Also, my car responds very well to being driven gently - it doesn't actually seem to get where it's going any faster if you push it, but it is a lot less economical.

All murderers are punished unless they kill in large numbers and to the sound of trumpets. - Voltaire
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106 , dci , megane , mpg

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