Till its burn-off time then all the soot shoots out

The soot that makes the smoke from diesels black is made of carbon particles. When they get burned off (Which happens continuously while the car is running at temperature and not on full load), the excess oxygen in the exhaust gases turns it into carbon dioxide, so the soot leaves as an odourless, colourless gas, so no smoke from DPF engines unless something is very wrong.

Edited 19 June, 201511 yr by psycholist

Can this be made to happen via VCDS on a 2010 car?

Incidentally mine is not called a Combi, nor and Estate, but in Oz they're called Wagons - oh, unless they're a Hyundai, when they might be a Tourer.

Diesel smoke is a thing of the past thanks to the DPF, but both tax and fuel prices combined with my mileage and the higher resale value all push me towards diesel. For uncompromised driving pleasure petrol is the only way to go though. I'm surprised you didn't like the 330D - apart from being a lot smaller inside than you'd think from the outside and costing a fortune to buy and maintain, the driving experience is supposed to be very good.

I too have recently driven a 330D, and I was pretty unimpressed. Yes, the torque was immense, but I too am not convinced with the quality of the product , nor the level, or I should say, the lack of the level of equipment given the exorbitant purchase price. I was glad to get back to my Superbs...

The soot that makes the smoke from diesels black is made of carbon particles. When they get burned off (Which happens continuously while the car is running at temperature and not on full load), the excess oxygen in the exhaust gases turns it into carbon dioxide, so the soot leaves as an odourless, colourless gas, so no smoke from DPF engines unless something is very wrong.

 

Unless you boot it at the exact time the regen is running, it seems the DPF cant filter AND regen at the same time and the result is smoke

Diesels last longer as the parts turn at half the speed. their torque is higher at low revs making them harder to stall

Diesels last longer as the parts turn at half the speed. their torque is higher at low revs making them harder to stall

 

 

that USED to be the case back in the days of my old Peugeot 505 and transit 2.5di "banana" engines, but sadly now you have to drive a diesel like a petrol, higher RPM, no slogging - or the EGR+DPF gets clogged and the DMF (if you have one) dismantles itself

 

DONT try driving lower than 1250 rpm, change down, or pay  the price

Edited 16 July, 201510 yr by lichfielddriver

Flip side of the coin....

 

SWMBO just drove from Geneva to Perpignan in her dads old (1997) Citroen Xsara 1.9 non turbo diesel. Was very economical (40+mpg) and cruised all day at 140kmh ish (officer).

 

Ran like a good Diesel French Watch   It is the last of the old school mechanical diesels though. Pretty bullet proof (and Citroen got it right with the that model Xsara).

I only do 15 miles each way to work. I kind of want a 3.6 v6 or a 2.0 tsi. But the sensible side of me says pick the 170 tdi as I'll be keeping it for 5 years

I only do 15 miles each way to work. I kind of want a 3.6 v6 or a 2.0 tsi. But the sensible side of me says pick the 170 tdi as I'll be keeping it for 5 years

 

Its a good point. Short trips with the 3.6 are not ideal. I manage to do just on 17 miles to work which gives the car enough time to get warmed up and everything flowing nicely. Anything less and it would not really have been such a good choice.

 

From what I have read on these forums the 3.6 is not that far off the mpg of the 2.0ltr cars on shortish commutes. Smaller engine working harder to shift big car? Who knows....that said on longer trips folk with the 2.0  tsi are reporting 40mpg which is great. I'm happy with my 30+mpg on a run and around 27 mpg on my commute.

 

Just for that engine. Its a real peach  :clap:

2.0tsi with a remap, air filter & exhaust, high pressure fuel pump.... See if I could get it upto 300bhp +

Found a 2.0tsi estate close to home too

I have had my 2.0 tsi for three years and have loved every minute. Personally could not be pursuaded to go diesel so now looking at the new Superb with the 2.0 tsi 280ps four wheel drive as a replacement. Having only covered 19000 in my current one petrol is still the way to go for me. The current one is quick and therefore can't wait to get my hands on the new one.

I'm waiting to find out what my wages are at the end of this month. Once I find that out it will depend on if I have £12k or £15k to spend. Currently there are 3 2.0tsi for sale on autotrader. 1 hatch and 2 estates. One of the estates is just a few miles from me. And it's an L&K in Beige with brown leather interior, panoramic sunroof & the right L&K wheels

Go for it if you can. You won't be disappointed.

Skoda Cannock had a drop dead gorgeous black 64 plate Superb hatch in yesterday, elegance i think

 

13 plate

 

http://www.skoda.net.r66.co.uk/carview.aspx?id=605103750

Edited 5 August, 201510 yr by lichfielddriver

Ooh.....just in. Chelmsford way:

 

http://www.ebay.co.uk/itm/2013-Skoda-Superb-3-6-V6-Elegance-DSG-4x4-5dr-/311434338239?hash=item4882eedfbf

Is an audi A8 bigger than a soopy?

Though I like the fuel consumption and the fact that diesel costs less per litre than petrol I do find the constant gear changing in my wife's diesel a bit of a pain. My previos 2.0 seat leon would happily run from 20 to 120 in 5th gear. whereas the superb is constantly going between 4th and 5th at 30mph and only gets into top above 40 to 50 mph. The Leon averaged 30mpg the superb 45. At average 12000 miles per year that is £800 less in fuel. Well worth it for a bigger car. I am not sure what average milage is - 15000?

Though I like the fuel consumption and the fact that diesel costs less per litre than petrol I do find the constant gear changing in my wife's diesel a bit of a pain. My previos 2.0 seat leon would happily run from 20 to 120 in 5th gear. whereas the superb is constantly going between 4th and 5th at 30mph and only gets into top above 40 to 50 mph. The Leon averaged 30mpg the superb 45. At average 12000 miles per year that is £800 less in fuel. Well worth it for a bigger car. I am not sure what average milage is - 15000?

 

My 1.4 petrol Superb is averaging just over 46 (just over 50 on a recent run from Northumberland to East Yorkshire over the Yorkshire wolds). I seem to block change between 3rd (great for surprisingly punchy overtake) and 6th (2000rpm at 60mph) a lot. Stop/start makes a big difference in town. Fuel cost is higher though especially as I always use higher octane petrol.

 

I got a great deal on the petrol (no one wants a large petrol ) but I calculated on my mileage (12k) it would take about 15 years to cancel out the extra cost of a diesel. However things haven’t gone quite to plan:-

1) The car is so nice to drive my estimated annual mileage seems to now be about 16k

2) Diesel now cheaper than petrol

3) It's much more economical than I originally thought

 

Fortunately 3) cancels out 1) & 2)

Edited 5 September, 201510 yr by bigjohn

I've recently changed back to petrol from 8 years of diesel (PD) ownership. Despite being regularly serviced and driven sensibly I could, when passing cyclists cover them in soot if it was set up in the right gear. It averaged 40-52 mpg most of the time. My petrol AUQ vRS hangs around 35/36 mpg generally. I no longer have the ability to smoke out cyclists but I've discovered that the little oblong in the dash is a stereo and I can hear it. Back to diesel, nooooo thanks...... Not yet

I've recently changed back to petrol from 8 years of diesel (PD) ownership. Despite being regularly serviced and driven sensibly I could, when passing cyclists cover them in soot if it was set up in the right gear. It averaged 40-52 mpg most of the time. My petrol AUQ vRS hangs around 35/36 mpg generally. I no longer have the ability to smoke out cyclists but I've discovered that the little oblong in the dash is a stereo and I can hear it. Back to diesel, nooooo thanks...... Not yet

 

My MKI (PD130 mapped to 160 / 170??) Superb produces zero smoke that is visible from the drivers seat (SWMBO claims it also doesn’t smoke at all when she has follow me) it averages 50 MPG, (high 40’s if ‘pressing on’ to very high 50’s if driven at 65mph) the engine is not silent but certainly quiet enough to have the radio down very low and still be able to hear it clearly.

 

I did consider petrol for the new Superb but now the engines produce 10% more power yet are 30% more efficient (up to mid 60 MPG!) the gap has widened again slightly.

 

When I worked out how long it would take to save the extra cost (fuel, tax etc) of the diesel it was certainly well before the 5 year warranty would run out (3 ½ years IIRC?) that was before you take into account the diesel will have a higher resale value.

 

So for me a nice 190BHP diesel that costs £30 to tax will do very nicely thanks.

On that note .... The £30 tax, will it stay that way or fall into the new rules when they come in? I know I'm being hammered !

Apparently it will stay as its all down to the euro 6 emissions , but as with any government decision who ‘kin knows?

My MKI (PD130 mapped to 160 / 170??) Superb produces zero smoke that is visible from the drivers seat (SWMBO claims it also doesn’t smoke at all when she has follow me) it averages 50 MPG, (high 40’s if ‘pressing on’ to very high 50’s if driven at 65mph) the engine is not silent but certainly quiet enough to have the radio down very low and still be able to hear it clearly.

 

I did consider petrol for the new Superb but now the engines produce 10% more power yet are 30% more efficient (up to mid 60 MPG!) the gap has widened again slightly.

 

When I worked out how long it would take to save the extra cost (fuel, tax etc) of the diesel it was certainly well before the 5 year warranty would run out (3 ½ years IIRC?) that was before you take into account the diesel will have a higher resale value.

 

So for me a nice 190BHP diesel that costs £30 to tax will do very nicely thanks.

My MK I was (and still is!)  a brilliant car that drove really well and whilst you could hear the diesel at tick-over it was refined at speed and always did about 50mpg in my hands. It's new owner is obviously a steadier driver than me as he is getting better figures and has just managed well over 700 miles on a tank of diesel - I only ever managed 650.

 

The main reason I went for the petrol MKII was the very low purchase price and I found the economy reasonable during an extended test drive (calculated about 15 years for fuel savings of diesel to exceed reduced purchase price of the petrol ). More importantly I didn't want some of the latest expensive emissions technology clamped to my exhaust pipe. (Petrol’s will get GPFs from 2017 though re Euro 6c)

Edited 6 September, 201510 yr by bigjohn

^^^ this is certainly why one size does not fit all.

 

and the more drivers switch back to petrol the cheaper diesel will become, most things go full circle how long it will be before diesel will be the preferred choice for the majority is a gamble... but you can bet one thing when it does happen the government will raise the tax on them!

^^^ this is certainly why one size does not fit all.

 

and the more drivers switch back to petrol the cheaper diesel will become, most things go full circle how long it will be before diesel will be the preferred choice for the majority is a gamble... but you can bet one thing when it does happen the government will raise the tax on them!

 

Indeed, in the late 1990's when LPG was gaining popularity (which it still has in some european countries) the goverment then effectively taxed it out of existence .

 

The MKII Octavia had a factory fit LPG model in some european countries