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How to Break In A New or Rebuilt Engine

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  • #641256
    AndreAndre
    Participant

      We recently got a new car and the driver’s handbook says to go easy for the first 1000 miles; to summarise, it states to avoid sudden jerky acceleration, don’t wide open throttle and stay below 4,000 rpm.

      Tried to follow that as close as possible, now its at around 3000 miles and I went over Eric’s video on engine break in and he says not to change the oil right away because of additives which may be present in the oil to help the break in.

      I change oil every 3,000 to 5,000 miles on my own car regardless of the service intervals, but the new car has a 12,000 mile oil change interval! I feel like that isn’t frequent enough, especially considering that the car is mostly used by my mother in city traffic so its forever stopping and starting.

      Now here is my predicament, in order for the warranty to be honoured by the dealership, the service work needs to be done by them, (something I would normally do myself).

      I checked the dipstick, the oil is already about halfway and too brown for my liking, when it was new it was completely clear, not even yellow.

      Should I let the miles hit 12,000 before taking it in for a service or do you think they would do it anyway at low miles, or should I do it myself?

      If you’re wondering, the car is a Dacia, a new brand in the UK but they’ve got a long history in Europe. They’re re-engineered Renaults, most of the parts are from the Renault parts bin, the engine is Renault’s 900cc 3-cylinder turbo (which is still very odd to me!).

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    • #641278
      college mancollege man
      Moderator

        If its a full synthetic 12k is not uncommon. If its conventional oil
        change it yourself leaving some time when you do bring it to the dealer
        the oil is ready to be changed so you don’t waste your money. This way
        warranty is intact.

        #641482
        AndreAndre
        Participant

          Hmm, I’m not sure about it being synthetic. I think I’m going to buy the Renault Elf oil they use and top it up and run it till 6,000 miles, then I’ll take it in for the service.

          #641506
          college mancollege man
          Moderator

            sounds like a plan. keep us posted on how it turns out. :side:

            #641735
            Lorrin BarthLorrin Barth
            Participant

              I’d suggest, since you followed the builder’s instructions for the first 1000 as instructed, you are free to treat it like any other vehicle.

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