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Video interessante sobre o aumento de carros a gasóleo à venda na Austrália

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    Video interessante sobre o aumento de carros a gasóleo à venda na Austrália


    #2
    se só pões vídeo, mais vale ir para a secção multimédia.

    consegues desenvolver o porquê desta tendência?

    Comentário


      #3
      Vou já ver 12 minutos de um gajo a falar. Alguém que resuma sff

      Comentário


        #4
        Originalmente Colocado por Fraga Ver Post
        Vou já ver 12 minutos de um gajo a falar. Alguém que resuma sff
        You're looking at an increasingly diesel Australia - diesel cars, diesel SUVs and diesel utes and light commercials are all selling in record numbers.

        There’s been a meteoric rise in diesel vehicle sales. Here in Australia when you add diesel cars to diesel SUVs the sales growth is staggering: up more than 70 per cent - in seven years. Diesel cars, SUVs and utes have sold to private buyers in record numbers - up a staggering 130 per cent there. What, exactly, is behind the rockstar rise of diesel?

        More people than ever are doing the diesel vs petrol comparison for themselves, and discovering diesel motors increasingly suit them better - as in better real world performance and much better fuel efficiency. In fact diesels are among the most fuel efficient cars money can buy.

        Diesel vs petrol engines: Comparable petrol engines make more peak power - but diesels deliver huge torque at low revs. That means more low-rpm power from the diesel - maybe three or four times as much down at 2000rpm. That makes diesel feel unfussed and effortless in traffic. Diesel motors are about 30-40 per cent more fuel efficient. That means more cruising range out of a diesel, and less spent every week on transport.

        Nothing’s free though, and diesel engines cost more up front. Generally two or three grand more for ordinary cars. And the diesel fuel pump is always filthy, smelly and slippery underfoot.

        But the fundamental difference between petrol and diesel engines is still where the fuel actually mixes with the air. In a standard multi-point injected petrol engine, the fuel injector does its spraying in the inlet port, just upstream from the valve. In a diesel, the fuel gets injected directly into the combustion chamber, just in time. There’s four or five precise little fuel injections per combustion event - we’re talking precision down at the millisecond level in the time domain. There’s no spark plug - the fuel just burns spontaneously.

        (Some of the latest direct injection petrol engines inject like that. But they still need spark plugs; they’re not auto-ignition engines like diesels. So, in a sense, petrol engines are playing a game of combustion catch-up.)

        Diesels cost about $2500 more. Some people get obsessed with calculating a break-even point - the hypothetical distance you might need to drive to save enough fuel to offset the extra cash you pay up front, for the diesel engine. It’s a fundamentally flawed economic analysis. For starters, the diesel goes better. It’s therefore intrinsically worth more. More importantly, when you sell the car down the track, the extra cost of the diesel is reflected in the value of the car. You always get a proportion of the price premium back.

        You’re probably wondering if the extra cost is justified. It certainly is. Two reasons: First: economies of scale. Carmakers make more petrol engines, and that reduces the per-unit cost of each petrol engine. And, second, the diesel is more complex. It’s turbocharged. It’s intercooled. It’s got a 2000-atmosphere fuel rail. There are peizo-electric injectors, and it’s got to be built to withstand higher internal pressures because of the greater compression. Often, because of the greater torque, diesel vehicles need a beefier driveline as well. So that extra cost is actually fair enough.

        It costs more to service a diesel, too … but not really that much more. In fact, in terms of total cost - fuel, depreciation, servicing - cost of ownership is very similar. Too close, actually, for the cost to be a factor in your decision to buy the petrol or the diesel.

        Comentário


          #5
          Originalmente Colocado por rrrfff Ver Post
          You're looking at an increasingly diesel Australia - diesel cars, diesel SUVs and diesel utes and light commercials are all selling in record numbers.

          [...]
          (Obrigado pela transcrição. )

          Na Austrália estão em 2001? A mim isto parece-me o filme que passou na Europa por essa altura. Entretanto já aconteceram umas coisas .

          Comentário


            #6
            A Austrália tem um mercado automóvel muito interessante, com algumas semelhanças ao dos EUA, embora com menos marcas americanas e com mais carros a diesel.

            O ano passado estive lá um mês e aluguei 9 dias um Nissan X-trail a gasolina 2,5 de 171 cv e depois emprestaram-me 2 semanas um VW Touareg a diesel 3,0 de 240 cv.

            Apesar de serem SUVs de segmentos diferentes (ambos AWD e auto) foi engraçado constatar uma vez mais as diferenças de utilização de ambos. O Nissan tem um bom espaço e uma qualidade bastante razoavel, mas o VW é ainda ligeiramente melhor em espaço e bastante mais robusto, eu diria uns bons 500 kg mais

            Agora se o 2,5 é um carro simpático de utilizar, não há dúvida que o enorme binário do turbo diesel faz uma grande diferença na primeira metade do conta-rpms

            Comentário


              #7
              aos poucos os motores gasolina irão conquistar o seu espaço.

              acredito que com a nova geração de motores turbinados, os gasolina vão ganhar mais binário e muitos cavalos.

              os consumos serão sempre mais altos, mas nem tudo é perfeito.

              gasta mais mas é mais suave.

              Comentário


                #8
                Isto parece o filme que cá havia há 15 anos... Estava na altura de acabar com os gasolinas atmosféricos, porque os motores diesel têm turbo, muito mais força em baixas, consomem menos e poluem menos! Pode ser que lá para 2030 haja um escândalo enorme de emissões de motores diesel na Austrália

                Comentário


                  #9
                  looool... o gajo tem algumas piadas tolas, mas aquela de "os gases de combustão do diesel são tão saudáveis quanto ter uma discussão com o kim jong-un na coreia do norte" é priceless...

                  Comentário

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