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Author Topic: Omega Diesel  (Read 2191 times)

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Tresvant

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Omega Diesel
« on: 03 April 2009, 09:22:17 »
Hi

Getting hassle of the wife to get rid of my V6 for something more economical. However i don't want to get anything else if its not an omega. Was wondering how economical a diesel omega is compared with my V6. Have looked at the official figures but even the figures for mine are rather optimistic. Also are the diesel versions any good ??

thanks for any info

Steve
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TheBoy

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Re: Omega Diesel
« Reply #1 on: 03 April 2009, 09:26:21 »
Depends. On a run, the 2.5TDs aren't too bad. Around town, poor MPG, esp in auto.  2.2DTi are all manual, but still are disappointing around town.

Saying that, a V6 isn't ideal in urban traffic either!
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unlucky alf

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Re: Omega Diesel
« Reply #2 on: 03 April 2009, 09:51:38 »
as TB says a diesel likes a drink around town but then so do most cars, mine is an auto & chipped & on a run its great on the juice, i would quote you figures from the mid but there are conflicting evidence as to how accurate it is ;)
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Martin_1962

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Re: Omega Diesel
« Reply #3 on: 03 April 2009, 11:23:52 »
LPG Conversion :y
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Ian_D

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Re: Omega Diesel
« Reply #4 on: 03 April 2009, 11:56:15 »
Quote
Depends. On a run, the 2.5TDs aren't too bad. Around town, poor MPG, esp in auto.  2.2DTi are all manual, but still are disappointing around town.

Saying that, a V6 isn't ideal in urban traffic either!

Am I dreaming hoping that the Diesel Auto im getting tomorrow will do more than 20mpg in town then?

The 3L Auto does about 16-17mpg now its somehow fixed itself!  :o
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Marks DTM Calib

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Re: Omega Diesel
« Reply #5 on: 03 April 2009, 12:02:01 »
Quote
Quote
Depends. On a run, the 2.5TDs aren't too bad. Around town, poor MPG, esp in auto.  2.2DTi are all manual, but still are disappointing around town.

Saying that, a V6 isn't ideal in urban traffic either!

Am I dreaming hoping that the Diesel Auto im getting tomorrow will do more than 20mpg in town then?

The 3L Auto does about 16-17mpg now its somehow fixed itself!  :o

You should see about 21-22mpg
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Tresvant

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Re: Omega Diesel
« Reply #6 on: 03 April 2009, 12:58:28 »
excuse my lack of knowledge but i am assuming that the only benefit to LPG conversion is the reduced fuel cost rather than better fuel economy??

thanks
Steve
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TheBoy

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Re: Omega Diesel
« Reply #7 on: 03 April 2009, 12:59:26 »
Quote
Quote
Depends. On a run, the 2.5TDs aren't too bad. Around town, poor MPG, esp in auto.  2.2DTi are all manual, but still are disappointing around town.

Saying that, a V6 isn't ideal in urban traffic either!

Am I dreaming hoping that the Diesel Auto im getting tomorrow will do more than 20mpg in town then?

The 3L Auto does about 16-17mpg now its somehow fixed itself!  :o
Based on your 3l auto mpg, I'd suggest the TD should be low 20s.

Chipping in my case improved real (not MID) consumption by around 10-12% I reckon.  With my chip, I reckon MID overreads consumption in the order of 15% (My MID was dead accurate with standard chip)
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TheBoy

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Re: Omega Diesel
« Reply #8 on: 03 April 2009, 13:00:22 »
Quote
excuse my lack of knowledge but i am assuming that the only benefit to LPG conversion is the reduced fuel cost rather than better fuel economy??

thanks
Steve
Correct. LPG actually increases consumption by around 10% (sure one of the LPGers could confirm percentage)
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Martin_1962

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Re: Omega Diesel
« Reply #9 on: 03 April 2009, 13:29:22 »
Quote
excuse my lack of knowledge but i am assuming that the only benefit to LPG conversion is the reduced fuel cost rather than better fuel economy??

thanks
Steve


20mpg at 50p/l = 40mpg at £1/l

Reduced fuel cost is as good as better economy
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Martin_1962

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Re: Omega Diesel
« Reply #10 on: 03 April 2009, 13:30:17 »
Quote
Quote
excuse my lack of knowledge but i am assuming that the only benefit to LPG conversion is the reduced fuel cost rather than better fuel economy??

thanks
Steve
Correct. LPG actually increases consumption by around 10% (sure one of the LPGers could confirm percentage)

About right, but isn't it final cost per mile the important bit
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Kevin Wood

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Re: Omega Diesel
« Reply #11 on: 03 April 2009, 14:16:26 »
Quote
Correct. LPG actually increases consumption by around 10% (sure one of the LPGers could confirm percentage)

About right, but isn't it final cost per mile the important bit[/quote]

About 11p a mile in my case. :y

.. or, to put it another way, less than my 1.8 8v Renault Laguna used to cost to run 2 1/2 years ago. The omega has more than twice the power, an auto gearbox, air con, and isn't "gay wheel drive". :y

Kevin
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Martin_1962

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Re: Omega Diesel
« Reply #12 on: 03 April 2009, 14:22:32 »
Quote
Quote
Correct. LPG actually increases consumption by around 10% (sure one of the LPGers could confirm percentage)

About right, but isn't it final cost per mile the important bit

About 11p a mile in my case. :y

.. or, to put it another way, less than my 1.8 8v Renault Laguna used to cost to run 2 1/2 years ago. The omega has more than twice the power, an auto gearbox, air con, and isn't "gay wheel drive". :y

Kevin
[/quote]


Why did you buy the Laguna then?
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Kevin Wood

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Re: Omega Diesel
« Reply #13 on: 03 April 2009, 14:51:30 »
Quote
Why did you buy the Laguna then?

It was available from a mate cheap, looked after, with not too many miles exactly when by Over 214 decided it was all "Over".

It was a reasonable car actually. Kept it for 100k miles. A lot longer than I expected to, and there was plenty of life left in it when I sold it TBH.

Kevin
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Entwood

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Re: Omega Diesel
« Reply #14 on: 03 April 2009, 15:24:07 »
All engines actualy burn a "mass" of fuel (by weight) rather than a volume ... but petrol and LGP are sold by volume (litres). As LPG weighs less than petrol you get less mass (Kgs) per litre than Petrol, by about 11%.

This causes the miles/litre (or mpg for the older members) to be greater on LPG than on petrol, but if you did it on miles/kilo they would be identical.

As LPG is about 1/2 the cost of petrol, but you get slightly less mpg, the savings are about 35%.

If you are really bored I can supply accurate figures for the past 10 months, covering some 10565 miles ... yes I'm that sad i've run a spreadsheet since the conversion.

My savings in that time, which includes a good deal of caravan towing, as well as motoring in France where LPG is relatively expensive, are running at 35.28%

Petrol costs (estimated) per mile = 23.09 p
LPG costs (actual) per mile = 14.94 p

These are all for the 3.2 engine of course, driven like I stole it .. :)
« Last Edit: 03 April 2009, 15:25:29 by entwood »
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