Diesel cars might be phased out.

Discussion in 'Off-Topic Discussion' started by Val.., Sep 11, 2014.

  1. Val..

    Val.. Confessed snail lover

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    Apparently they are not very good for the environment after all!!! :doh:

    Val
     
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    • pete

      pete Growing a bit of this and a bit of that....

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      Must admit I always thought diesel was the dirtiest fuel ever invented.:smile:
       
    • Scrungee

      Scrungee Well known for it

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      I changed to petrol 13 months ago, but simply went out and bought a new car and didn't bang on about I should get a massive subsidy like lots of people are now doing.
       
    • Sheal

      Sheal Total Gardener

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      I've never owned or driven a diesel car. I think a lot of people own them because of fuel consumption but that's no longer the case. I have a petrol 1.2 turbo Clio that does 56mpg, why would I bother!

      If they do phase them out then petrol prices will probably rise.
       
    • Jiffy

      Jiffy The Match is on Fire

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      I think that TVO was worst than diesel
       
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      • pete

        pete Growing a bit of this and a bit of that....

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        Never tried it, and not sure I want to.

        I'll stick with petrol, might not get the MPG, but cant stand the rattle of diesels.
         
      • longk

        longk Total Gardener

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        If you compare new petrol and new diesel engines then petrol wins. The efficiency of petrol engines drops off with age more steeply than diesel though so pretty soon it all levels out. The biggest problem is that the UK is one huge traffic jam!

        Nope. It has always been as good as impossible to top yourself using the hosepipe method on a diesel car!

        I have an 800cc diesel Smart that returns me over 80mpg doing the pottering about that it's used for! And its emissions are so low that road tax is free! There is another reason though. Amongst proper sensible sized cars the modern diesel engine is a wall of torque. By that what I mean is that at all sensible engine speeds if you put your foot down it will just get up and go.
         
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        • pete

          pete Growing a bit of this and a bit of that....

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          You know more than me Longk, but I'm sure if I tried to top myself with a diesel I'd probably die two years later with a bad cough.

          I've got a petrol turbo which is becoming almost as common now as the diesel turbos, and it does the same regarding torque, put your foot down at 1500 revs and it goes.
           
        • longk

          longk Total Gardener

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          That would be about as good as it got. At least an old petrol engine killed quickly:heehee:

          On a daily basis I drive everything from the Smart through to German and Italian exotica. Modern diesels seriously outdo their petrol brothers.
           
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          • pete

            pete Growing a bit of this and a bit of that....

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            I know Jaguar have a few diesels and they have got to be rubbish, Audi seem to be diesel mad, not sure BMW are, so much, VW same as Audi.
            Ford diesels sound like every part of the engine is moving, but in different directions.
            Not sure about Vauxhall, but then, nobody is really, are they?

            Would I be right in saying the real top of the range stuff still use petrol?
             
          • clueless1

            clueless1 member... yep, that's what I am:)

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            As far as I know, the actual scientists have always said that diesel is filthy dirty stuff. The only reason diesel is 'better for the environment' is because what is better for the environment officially is decided by politicians rather than scientists. The scientists tell us stuff, the politicians completely fail to understand it, and they jump on one tiny little piece that they vaguely understand. Politicians understand for example that more CO2 in the air is bad, and diesels produce less CO2 because they use less fuel. They completely fail to comprehend that while CO2 is lower from a diesel than a comparable petrol engine, all the other nasties are in much greater measures. One of the nastiest being the 'large particulate matter', ie soot. The stuff that clogs and irritates people's respiratory tracts causing asthma and cancer and all sorts of other nasties.

            Modern diesel engines have a thing called a DPF (diesel particulate filter) that is supposed to stop the soot getting out. They don't work, and lots of people simply remove them, but even when they are working, they work by trapping and burning the soot to release lots of CO2 and NO2 and other such unpleasantries, but at least when the engine is not operating in the zone where it is either letting the soot escape or burning it off, CO2 is lower than petrol, and that's good enough for the EU.
             
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            • pete

              pete Growing a bit of this and a bit of that....

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              Anyone who has driven behind a bus on a hot day will tell you diesel is nasty stuff regarding soot and fumes.
              But even the modern cars seem to put a pretty good plume of black smoke if the driver puts his foot down.
              I do think the emmisions thing revolves around CO2 and not what really matters.
               
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              • clueless1

                clueless1 member... yep, that's what I am:)

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                I don't understand why diesel and petrol are still the main focus. The technology for all electric is there. Its just the will to implement it that is absent.
                 
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                • pete

                  pete Growing a bit of this and a bit of that....

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                  I really dont think electric cars are practical yet, and the cost is also holding it back.
                  If we all suddenly went electric there would not be the infrastructure to support it, and who is going to pay for it?
                   
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                  • Fat Controller

                    Fat Controller 'Cuddly' Scottish Admin! Staff Member

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                    I own a diesel, and my decision to buy was only partly driven by the fuel economy aspect. The main reason is comparable performance and general flexibility - by that, I mean that the torque as mentioned above really does give a lot of grunt under the loud pedal. At A-road speeds, in gear flexibility is superb, a wee squeeze of the throttle and it will pick its heels up and go without any fuss, or any need to drop a cog or three.

                    Mine is fitted with a DPF, which works, and which does a regen roughly every tankful - the regen process effectively introduces a bit more fuel whilst the car is running with the objective of heating the DPF innards to burn off the soot; even at idle, this only increases the idle speed by about 100rpm and its usually all over in 15 mins - if you were on the open road, you wouldn't even know it was happening.

                    As you know, I am also responsible for a fleet of buses, some of which have filters similar to the DPF on my car, the others have a system which uses an additive called AdBlue; essentially, it is a synthesised urea (yes - pee) which is injected into the exhaust and somehow removes the bulk of the nasties from the exhaust emissions.

                    The days of buses (or cars for that matter) chucking out heaps of reek should be on the wane; if you have buses in your area that are chucking out reek then they are either too old to have been fitted with some sort of DPF or AdBlue system, or it has something very, very wrong with it. I can honestly, hand on heart, say that nowadays the only time that I ever see one of our vehicles smoking like a goodun' is when there has been a failure of some variety (usually the turbo) - under normal operation, they don't smoke at all.

                    Back in the days of yore when I was a driver, on a winters morning the inside of our (open fronted) vehicle shed was thick with diesel smoke - literally like a fog. Nowadays, I can quite happily wander about in the same shed at the same small hour of the morning with over 100 buses starting and heading off for their day, and there is barely a hint of any fumes. Don't get me wrong, we still have exhaust extraction systems in the workshops etc as breathing it regularly and constantly clearly wouldn't be a good idea - but they are nowhere near as bad as they used to be.
                     
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