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  • My First Diesel

    Hi All

    Just got a new Prado GXL (D4D) two weeks back . So far happy with it and just need to get used to owning a diesel car. Had many rides previously but all was petrol, including an AWD SUV prior to this.

    Apart from driving the company diesel cars at site, not much experience with diesel cars.

    Toyota manual wrote that it needs to warm down (20 sec to 2 min) after each ride, is that critical?

    I drive to work (10km each way), do the weekend run to the city (35km away). Is that sufficient to "burn off" that particulate.

    Saw the 4x4 shows and " the expert" says that exhaust should be clean(?). For mine, it is black when I ran my hand in it. Hmm?

    Any other tips or suggestion in terms of good driving habits on the D4D is appreciated.

    Thanks

    Waz

  • #2
    I don't know about the rest, but it is a good idea to let it idle for 20 to 30 seconds after a run to let the turbo cool down. If it is not cooled like this, I understand it can cause greater wear and more failures.

    Regarding good habits, with a new car, don't thrash it, but don't baby it either. Give it a good range of driving conditions. My first car was a diesel (25 years ago?), and I was a much calmer driver with that than any of my later cars (all petrol, some turbo). I deliberately chose diesel this time as I want to get back to that steady, cruising mode of driving! If you can't overtake, you don't worry about it, and you stay much more relaxed. You may arrive 10 minutes later, but who cares...

    Having said that, it does have quite a bit of pull, and can easily match the performance of my previous 2.4l petrol car when going up hills. Foot to the floor has little effect however, as high revs in a diesel are not giving you much power, so take it steady.

    Comment


    • #3
      Hi ZZ

      Have not try to floor the accelerator yet. When feeding into the highway (from 50 to 100km/hr), it has quite a decent pickup. I am happy with that. Not sure if it has the power to pick up from 110 to 140 when overtaking on the country road - not that it might happened. Had a V6 petrol (Volvo XC90) before that. That beast has power - but don't like to see the consumption meter.

      Comment


      • #4
        Originally posted by wazafi View Post
        Toyota manual wrote that it needs to warm down (20 sec to 2 min) after each ride, is that critical?

        I drive to work (10km each way), do the weekend run to the city (35km away). Is that sufficient to "burn off" that particulate.
        Congrats on your first diesel vehicle.

        There is no diesel particulate filter on the Prado 150 Series D4D for Australian spec vehicles, as far as I'm aware, so there is no "burn off" cycle.

        If you work the engine hard and then come to a stop abruptly, i.e. sustained high speed highway driving, then enter a fuel station off the highway to fill up the tank, do allow the engine to cool down at least a couple of minutes, otherwise the accumulated heat in the turbo will cook the oil that lubricates the turbo bearings. If you let the turbo cool down, the oil in the turbo bearings will not get overheated.

        Comment


        • #5
          Originally posted by tempestv8 View Post
          Congrats on your first diesel vehicle.

          There is no diesel particulate filter on the Prado 150 Series D4D for Australian spec vehicles, as far as I'm aware, so there is no "burn off" cycle.

          If you work the engine hard and then come to a stop abruptly, i.e. sustained high speed highway driving, then enter a fuel station off the highway to fill up the tank, do allow the engine to cool down at least a couple of minutes, otherwise the accumulated heat in the turbo will cook the oil that lubricates the turbo bearings. If you let the turbo cool down, the oil in the turbo bearings will not get overheated.
          What do you mean by warm down? Do I leave the engine on idle before turning off the engine?
          Silver Prado GXL 2013 D4D.

          Comment


          • #6
            You got it, best trick when fuelling is to pull off to the side and do the other checks, i.e. tyre pressures, wash windscreen, fill washer bottle or even go take a leak, all the while leaving the car to idle. This will give plenty of time for the turbo to cool from it's peak operating temp.

            Cheers,
            Dusty

            Comment


            • #7
              Yes, just let it idle. It's handy having a EGT gauge because you know what temps are coming out of the turbo. Short trips around town is not an issue, it's the long or hard driving trips (towing) that you really need to allow the vehicle to idle for a couple on minutes. You can purchase turbo timers.

              Winston.
              Winston.

              White 2009 120 Series D4D GXL manual.

              Comment


              • #8
                It always a good idea to let turbo cool down from 30sec - 2mins depending on what type of driving u have been doing. Around town driving (30sec) long highway driving (1min) hard 4x4 or soft sand driving where the turbo is working its hardest (2min). Each owner will have different times at which they idle down the turbo. If u run the turbo hard and then immediately shut down the engine, the turbo is still spinning as it winds to a stop with no oil flowing to the turbo. Obviously oil is supplied from the oil pump and with engine shut off no oil pump and a hot turbo with no oil to cool turbo u have the chance of premature turbo failure or seal failure. There are a lot more knowledgable people on here than me and I'm sure they will correct me if I'm wrong. This is just something I have always done.
                2013 Black 150 GXL D4D..... ARB on board air, ARB Awning and ARB front wind deflector, ARB E-Z Deflator, ARB Dual battery tray, Redarc SBI12 VSR, Redarc RH brake controller, BFG AT 265/65 17's, HKB Voltage booster, Maxtrax with mounting pins, 45ltr Engel..... Ordered - ARB Deluxe bar, Safari snorkel and OME 2" Lift kit

                Comment


                • #9
                  Do I still need to warm down when I drove the car at low RPM for a while before stopped?
                  Silver Prado GXL 2013 D4D.

                  Comment


                  • #10
                    Waz, I use to have turbo diesel prado and if I was pulling off the freeway say to fill up I would let it idle for a couple of minutes as described above, or if working it hard on Stockton beach I would just let it idle every time I stopped for a good few minutes, if I was coming off the M4 here in Sydney heading to my house it takes me a further roughly 3 to 4 minutes to get to my driveway, but I was only taking it steady with minimal throttle at I have to go through a winding road by then it would have well and truly cooled down enough to shut it down once I idled into my garage. Had head issues (common on the 1kz 95 series) but not turbo. If just gentle throttle then maybe 30 seconds or so, no big deal to sit there for 30 seconds and wait, undo seat belt organize yourself jump out then flick the key just as your getting out. Big thing as well is changing your oil and filter every 5k along with letting it idle down. There were a few issues with some of the turbos on the 120's but very few, not like the heads on the 90 series......hwang_edward, if talking about your GXL petrol then no.........Cheers Steve
                    Face lift 150 Prado V6 auto. No mods yet

                    Comment


                    • #11
                      Waz, as others have pointed out, the cooling down (idling) is recommended if the engine has been under load (towing, 4WD, highway etc). When I get off the freeway, I drive another couple of k's through suburbia, so don't think there is a need to idle the engine then. At least I don't. As for other tips, I would say always buy quality Diesel fuel (any brand name, but BP seems to have a good reputation). Stay away from the no brands if you can. I drive a Diesel manual and learned to drive it at low revs. Diesels dont like high revs like petrol engines. Plenty of torque anyway. Also, I keep the revs down during engine warm up. Other than that, I would say enjoy the new car. Fred

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