Clio dCi 80 Winter Diesel Consumption - Renault Forums :: Independent Renault forum

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post #1 of 2 (permalink) Old 28th March 2006 Thread Starter
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Clio dCi 80 Winter Diesel Consumption

I noticed at the beginning of the winter that the diesel consumption in my Clio increased. It was easy to spot given that I drive it on the same route to and from work every day, and that its fuel guage is a series of graduated lights.
When I first bought the car (new), the first light would go out at 80 miles, the second at 160 and so on. Come the winter, the first light would go out at 70 miles, the second at 140, with a corresponding increase in consumption across the whole tankful. This week, with the sudden increase in temperature, I have gone back to 80 miles; 82.2 this morning, in fact.
Am I imagining things, or do diesels use more fuel in the winter? This is my first diesel, so I do not speak from experience.
All advice gratefullly received!
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post #2 of 2 (permalink) Old 28th March 2006
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All cars use slightly more fuel in winter due to much more use of heating,lights,fans etc - all are a drain on the engines power. Also diesels are very efficient engines ( or at least modern comon rail engines are) and take a while to warm up - so in cold weather they take longer to warm up.

Whilst it wouldn't make a difference on the same tank of diesel, but also diesel companies add an anti-waxing agent to diesel during the winter to stop the diesel waxing up in freezing conditions - this slightly affect mpg as well.

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clio , consumption , dci , diesel , winter

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