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V40 mpg dropping off a cliffViews : 795 Replies : 5Users Viewing This Thread : |
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Dec 9th, 2021, 17:09 | #1 |
Junior Member
Last Online: Jan 19th, 2023 20:51
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Location: Leicester
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V40 mpg dropping off a cliff
I have a 64 V40 D4.
When I got it in May this year, the average mpg on the dashboard was something like 49. Over the summer, that gradually rose to a peak of 54.9, but settled at 54.6, doing a mix of mostly motorway driving, but some country roads and the occasional short local trip. The actual mpg, calculated using mileage and how much fuel it took to fill a tank, was around 54-56. During October, I was off work for a month with an injured shoulder, and most of my trips were local. Obviously, the mpg fell. I've been back at work for a month now, and it's back to a mix of motorway and country roads But the mpg has continued sinking like a stone. The dashboard is now saying 51.6, and after just filling up, the most recent mpg was 46!! Eh?? I must be doing something wrong somewhere. That's nuts.
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2015 V40 D4 R-Design |
Dec 9th, 2021, 18:11 | #2 |
I've Been Banned
Last Online: Dec 16th, 2021 22:41
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Location: london
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Outside temp ?? Change diesel filter
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Dec 9th, 2021, 18:55 | #3 |
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Last Online: Today 00:49
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Location: Wessex
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Yeah, outside temp has a massive effect on how much dinosaur squeezings you use. My car will drop from low fifties to low forties in the winter.
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Dec 9th, 2021, 19:11 | #4 |
Junior Member
Last Online: Jan 19th, 2023 20:51
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Location: Leicester
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Really? Wow. Never experienced that effect on any of my cars before, but I'll take your word for it.
Thanks, I'll keep an eye out for that now, then.
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2015 V40 D4 R-Design |
Dec 9th, 2021, 20:28 | #5 |
Master Member
Last Online: Jun 6th, 2024 12:07
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I assume they still put anti waxing additives into diesel in the winter. Anyone an idea of how much by volume? I assume it has an effect. May be wrong .
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V90 R Design 2019my |
Dec 9th, 2021, 21:05 | #6 |
The Brit Brick
Last Online: Aug 13th, 2023 09:39
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You will have experienced it, you just haven't noticed it. P
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