c350 cdi vs c350 cgi real world mpg????

[st4]

There is a simple answer. If you're a tightwad who worries about every penny, then get a diesel. If you appreciate engineering and hate the sound of amplified death-watch beetles on amphetamines every time you start up, get a petrol version.

A diesel with its complex turbo charging, emissions control equipment is probably more of an engineering undertaking than a big naturally aspirated petrol engine.

Just saying

 

[mercmerc321]

Huh??.

 

[Magoo]

I've seen a steady improvement of mpg on my new C350 Coupe since picking up in June. On a 15 mile, mixed road commute I was getting approx 28 to start with but now regularly getting closer to 33. Average on the clock over the first 1,000 miles is 30.4 mpg.

 

[BenzedUP]

A diesel with its complex turbo charging, emissions control equipment is probably more of an engineering undertaking than a big naturally aspirated petrol engine.

Just saying

Yet they still sound like a tractor.

Just saying.

 

[st4]

Yet they still sound like a tractor.

Just saying.

I love tractors.

Just saying lol....

 

[mercmerc321]

Lool

 

[mercmerc321]

Lool

 

[Geordie Amanda]

just returned from Wimbledon to Manchester at an average speed of 68mph. The 'pooter showed an average of 45.6mpg. The fuel gage hadn't gone down too much either after 220+ miles Although my car has stood without turning a wheel for a fortnight and it is only 4 weeks old, it's got 2,000 miles on the clock so I'm am guessing it is starting to loosen up a bit and hopefully will continue to improve a little for the next few months (although I have rarely seen the gains talked about on the interweb and in magazines)

Now if only I didn't look like a gangsters moll driving a black car with black wheels

ps the car is in my sig

 

[RichardM]

All this discussion but I believe Mercedes have dropped the petrol C350 for the saloon and estate.

Merc C-class gets spec upgrades and new engine | Autocar

 

[Peter DLM]

All this discussion but I believe Mercedes have dropped the petrol C350 for the saloon and estate.

Merc C-class gets spec upgrades and new engine | Autocar

Aye, you can't get them new anymore

 

[Dieselman]

just returned from Wimbledon to Manchester at an average speed of 68mph.

Good to see you back.

Have you been listening to the balls bounce?

 

[sdb123]

Hi i do about 10 to 12 k a year...

Given that mileage, there's little point in getting a diesel IMO.

 

[Geordie Amanda]

Good to see you back.

Have you been listening to the balls bounce?

And other things going bump in the night...and afternoon....and morning....

 

[chrisbin]

Now if only I didn't look like a gangsters moll driving a black car with black wheels

......should have got a white one......

 

[st4]

Given that mileage, there's little point in getting a diesel IMO.

Why? Diesels and petrols cost the same, diesel depreciates less and use less fuel.

 

[sdb123]

Why? Diesels and petrols cost the same, diesel depreciates less and use less fuel.

Diesels don't use less fuel when doing small trips....I'm just offering my comment based on years of ownership of both types of fuel. From a running cost perspective you really need to do nearer 20k a year - again, based on my experience. YMMV.

 

[gIzzE]

I agree with that, big diesels are useless for consumption in short (sub 5 mile) journeys and even more so when it is cold outside.

I got worse consumption doing the 10 mile trek into the city in the morning in a 3.0tdi A6 compared with the 3.2fsi petrol. Only 1-2 mpg in it, but still worse.
On a long run the diesel started to pull ahead, but again, not by as much as you would expect.

 

[chrisbin]

Am never convinced about the diesel using more fuel on short journeys argument, but have never had 2 identical cars to make a proper comparison. But the other factors have to be the price of the fuel and more refined feel of a petrol car.

 

[gIzzE]

Depends on the size of the engine.
2 litre diesels don't seem to take anywhere near as long to get to temp compared to a 4 litre.

My 2 litre diesels have generally been pretty good round town if the temp is warm, the X1 was the last one, with stop/start and that would still be 30+ even on a cold start and 10 mile trip.
Where as my E320cdi could drop to 24/25.
My older E320 v6 petrol would still do 22/23 on that run though.

But comparing a C350 vs C350cdi I don't think it is worth worrying about the mpg.
As Steve said, other factors like depreciation yeah, but mpg doing 12k miles a year?
There will be around £15 a week in it at the max.
When you are £250 a week to buy and run one for 3 years does it really matter?

 

[st4]

Big assumptions being made that a low miles drivers do lots of short trips. My father only dies 10k per year but never does short trips, many long 1hr plus drives on a weekend. He's miles better off in a diesel and cost used/new is not much different and duel costs are cheaper. What would you rather, £50 fir a days tour or £75?