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Home > Technical > Cold weather MPG |
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npinks Member Since: 28 Jun 2007 Location: Ls25 Posts: 20090 |
I have notice about 8mpg too, driving to work at 20mpg is not fun
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11th Feb 2009 9:27 am |
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bjartin Member Since: 10 Sep 2007 Location: Moved to Defender2.net. Posts: 616 |
I have begun to use 2-stroke oil, and estimated that consumption would fall, but it has risen. The temperature is zero C. LR Freelander2 2,2 Td4 HSE manuel Stornaway Grey (Metallic) & Ebony Black Leather & Sun/Moon-roof & Bi-Xenon & Roof Rails & Tow bar & Body side rubbing strips & Cold climate pack & Privacy glass & NavTeq . Production Date: 11/5-2007 in Halewood.
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11th Feb 2009 10:40 am |
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AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
Mine's not doing as well as I'd like of late. On long runs, and driving pretty carefully, I don't achieve much better that 35mpg (it's a manual). In autumn, doing similar runs, It was nearer 40mpg. I put it down to engine mapping firmware changes when it went in for some minor issues sorting, but perhaps that coincided with colder weather? |
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11th Feb 2009 10:40 am |
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AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
....by the way, interesting avatar Dave. How did you cram that into 7kB? |
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11th Feb 2009 11:04 am |
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On-board Member Since: 02 Feb 2009 Location: South-East Posts: 265 |
Trick of the trade dave, we must not let it out.
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11th Feb 2009 5:32 pm |
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AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
It's OK - I worked out the avatar hosting myself. Now, to tell the world..... |
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11th Feb 2009 10:05 pm |
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Frobius Member Since: 05 Aug 2008 Location: Lincolnshire Posts: 326 |
Yup, must admit I've noticed that the economy is horrendous in this weather.
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11th Feb 2009 10:34 pm |
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AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
So, could this be because we've all had the PTC preheat modification recently, and not the weather? When did everyone have the work done? |
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11th Feb 2009 11:49 pm |
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shilen Member Since: 29 Feb 2008 Location: In the Middle Posts: 1774 |
Today ive driven 170 miles (about 130 of it on motorway) in a courtesy FL2 manual with the temp at -3 degrees and still got 42mpg!!!! |
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12th Feb 2009 4:41 pm |
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AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
Hmmm... What was your average speed - mortorway/urban?
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12th Feb 2009 4:45 pm |
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shar Member Since: 28 Oct 2007 Location: leicestershire Posts: 324 |
You lot must have lead boots to lose that kinda mpg No change to my mpg and before you ask i do use all the gears |
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12th Feb 2009 5:59 pm |
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shilen Member Since: 29 Feb 2008 Location: In the Middle Posts: 1774 |
between 70 and 80 on the motorway with a 5 mile spell at 50mph through roadworks. My auto changes gear at 2000rpm whereas in the manual I was changing at about 1500rpm - seemed to make all the difference! Wonder what I would have got if I had taken my auto on the same route - my guess would be about 34mpg! |
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12th Feb 2009 6:40 pm |
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On-board Member Since: 02 Feb 2009 Location: South-East Posts: 265 |
Whats a PTC heater may I ask ? |
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12th Feb 2009 7:45 pm |
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AndyT Member Since: 28 Dec 2008 Location: West Yorkshire Posts: 447 |
Yes, I think the difference between auto and manual seems to be in the order of 6mpg. I'm a little concerned as I seem to be getting auto economy from a manual In December, it had an ECU firmware 'upgrade'. Before that I was getting near 40mpg on a run - now, driving uber-careful I peak at 36mpg. I'm thinking it's more firmware than weather in my case, but how do you tell?? |
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14th Feb 2009 12:44 pm |
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