C30 2.0d MPG

david480 · Dec 11th, 2023, 22:24

I'm only getting 39/40mpg from my 2008 C30 2.0d with 220k miles. I have roof bars, a bike rack and 18inch Atreus wheels which I gather can affect MPG. I'm just wondering if this is normal for my car or should it be higher? I generally don't drive it hard although I live in a hilly area.

PNM · Dec 12th, 2023, 08:45

I can't speak personally for the 2.0d, but I've got a 2.0 petrol, that does marginally better than that on mixed drives, and around 45mpg on motorway running with nothing on the roof. As soon as I put the roof box on, the MPG drops by about 20% on motorway runs. I would expect a diesel to return better MPG than mine.

Is the car new to you, or have you had it a while and the MPG has recently declined?

Dippydog · Dec 12th, 2023, 08:53

You don't say whether your consumption figures are an average/on a long run or round town.Certainly roof bars and a bike rack will have some effect on your figures[others will probably know better by roughly how much]I'm not so sure that the wheel size will alter things,although depending on what the standard size wheel/tyre combination is compared to what it is now then the rolling radius could have an effect on speedometer/mileage readings and therefore skew the figures slightly too?

david480 · Dec 12th, 2023, 10:58

Quote:

Originally Posted by PNM

I can't speak personally for the 2.0d, but I've got a 2.0 petrol, that does marginally better than that on mixed drives, and around 45mpg on motorway running with nothing on the roof. As soon as I put the roof box on, the MPG drops by about 20% on motorway runs. I would expect a diesel to return better MPG than mine.

Is the car new to you, or have you had it a while and the MPG has recently declined?

No I have had the car nearly three years and it has returned roughly the same mpg in that time. Just someone remarked to me that they thought I should be getting more.

It is mainly mixed driving, a mixture of local driving on hilly Roads and driving on dual carriageways.

Teddy1975 · Dec 12th, 2023, 17:01

Before my troubles with the DPF started, I did roughly 4.8L/100km, or 49 mpg with mixed driving in my V50 of same vintage and a little less miles.

The 2.0D engine in a V50 is rated to do 5.7L/100km, 41 mpg, but with a gentler foot it is easy to get much more from it.

The 2.0D is more for power than mileage though, as it will pull full steam from around 2000 rpm and up.

Dec 11th, 2023, 22:24	#1
david480 Member Last Online: Apr 25th, 2024 15:20 Join Date: Nov 2008 Location: Cork	C30 2.0d MPG I'm only getting 39/40mpg from my 2008 C30 2.0d with 220k miles. I have roof bars, a bike rack and 18inch Atreus wheels which I gather can affect MPG. I'm just wondering if this is normal for my car or should it be higher? I generally don't drive it hard although I live in a hilly area.

Dec 12th, 2023, 08:45	#2
PNM Member Last Online: Today 18:44 Join Date: Jun 2018 Location: Midlands	I can't speak personally for the 2.0d, but I've got a 2.0 petrol, that does marginally better than that on mixed drives, and around 45mpg on motorway running with nothing on the roof. As soon as I put the roof box on, the MPG drops by about 20% on motorway runs. I would expect a diesel to return better MPG than mine. Is the car new to you, or have you had it a while and the MPG has recently declined?

Dec 12th, 2023, 08:53	#3
Dippydog Premier Member Last Online: Apr 25th, 2024 17:55 Join Date: Jun 2016 Location: S****horpe	You don't say whether your consumption figures are an average/on a long run or round town.Certainly roof bars and a bike rack will have some effect on your figures[others will probably know better by roughly how much]I'm not so sure that the wheel size will alter things,although depending on what the standard size wheel/tyre combination is compared to what it is now then the rolling radius could have an effect on speedometer/mileage readings and therefore skew the figures slightly too?

Dec 12th, 2023, 17:01	#5
Teddy1975 Member Last Online: Today 18:58 Join Date: Aug 2017 Location: Denmark	Before my troubles with the DPF started, I did roughly 4.8L/100km, or 49 mpg with mixed driving in my V50 of same vintage and a little less miles. The 2.0D engine in a V50 is rated to do 5.7L/100km, 41 mpg, but with a gentler foot it is easy to get much more from it. The 2.0D is more for power than mileage though, as it will pull full steam from around 2000 rpm and up.

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