New Astra MPG

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chriscoates said:

Pretty much and very expensive for what they are. Back on topic, is there any reason why manufacturers blatantly lie about mpg figures? Surely it just makes customers have a worse opinion about the car if they were expecting better.

They don't lie.

The engines are calibrated pretty much specifically to the cycle that determines the "official" figures. Because these are the only ones available so all you have to compare cars on really.

[odyssey2200]

zooky said:

Really? Sounds like a wind up!

it labours bit in 6th.

^th is just a bit too tall

[robm3]

shoestring7 said:

Honest John is setting up a database of 'real' fuel consumption.

Why not add your experiences? http://www.honestjohn.co.uk/realmpg/Results?manufa...

SS7

Interesting. But what's more interesting is them stating that fuel economy figures are done on a rolling road!!

So what about wind resistance, hills etc..

There's no way a manufacturer's figure can be acheived if this is true.

[odyssey2200]

robm3 said:

Interesting. But what's more interesting is them stating that fuel economy figures are done on a rolling road!!

So what about wind resistance, hills etc..

There's no way a manufacturer's figure can be acheived if this is true.

The criteria for the test is the same for all manufacturers and is so unrealistic as to be a joke.

[alfaben]

edward1 said:

the 1.9cdti is the alfa/fiat engine and it would seem that with a DPF the mpg isn't great as moaned about by 159 owners.

My 159 is very economical for my constant motorway driving, always see on the trip 53MPG so whilst that is a optimistic readout its still far above what seems to be the trend. I don't hang about either :s

Not a real fan of the new 1.7 diesel unit vauxhall have opted for, imo they should have stuck with fiat powertrain and put the 1.9 twin turbo diesels in the astra. They would have really shifted then

Edited by alfaben on Friday 10th June 13:12

[saleen836]

I have a 2004 Astra van 2litre turbo with 105k on the clock and even carrying tools in the back I average 50mpg

[off_again]

There once was a Bob Monkhouse story I think. His neighbour bought one of the first Japanese cars to the UK, little Honda 800/600 thing, anyway raved about the economy all the time. Anyway, Bob noticed that it didnt have a locking petrol cap and topped it up on regular intervals to "boost" the economy.

Cue neighbour who was getting 100+MPG out of this thing and thought it was the best thing since sliced bread. Anyway, Bob had to go away for work for a week or two. Came home to neighbour who had ranted and shouted at the dealer about the "poor" economy that his car was getting now. Only averaging 50MPG and they couldnt find anything wrong with it. He sent the car back in disgust and never bought a Honda again....

Nice story even if true or not.

[DickSkruttock]

HellDiver said:

DickSkruttock said:

My mate's got a 2002 Astra 1.7 DTi (except the turbo's fked so it's more of a 1.7Di!) It's done 203000 miles, has a dashboard lit up like a christmas tree and manages a consistant 62mpg for 600 miles a week brim to brim.

Maybe the new one's are st

Misconception. The 1.7DI has a turbo, just no intercooler. Likely his MAF is gone, which runs them in limp mode, so it will use considerably less fuel.

Someone mentioned the 1.7 is still the same old ex-Isuzu lump from the late Mk3 Astra, just tarted up a bit with commonrail injection and a few oil jets.

Thanks for the info. I'll pass it onto him.

If it makes it use more fuel he wont be happy!