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Hyundai does not recommend an engine flush during routine service

I recently had my Hyundai Tucson services with the Hyundai authorised dealer recommending an engine flush, even prior to inspecting the vehicle. An ‘engine flush’ clears the gunk out of your engine by pouring a chemical into the engine and idling. Due to the use of chemicals, it can possibly be damaging to modern car’s engines.

I was concerned due to no mentioned of an engine flush in the Hyundai Recommended Maintenance Schedules, so I contact Hyundai directly, this was their response:

I have been in contact with our technical department both locally and overseas and they have advised that Hyundai don’t recommend an [engine] flush at service.

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Comments

8 responses to “Hyundai does not recommend an engine flush during routine service”

  1. Dr. Demento Avatar
    Dr. Demento

    I can’t remember where I saw it, but I believe that NO car manufacturer recommends engine flushes. The potential for damage is too high.
    It would be like if there was a drug to remove all the cholesterol on your artery walls all at once. While that sounds like a worthy goal, dumping that much gunk into your system all at once would cause a heart attack instead of prevent it. Same with your car.

    Reply
    1. Travis h Avatar
      Travis h

      Yes. but the dealers, even those authorised by the manufacturers are still doing it.

      Reply
  2. KAREN HOWATT Avatar
    KAREN HOWATT

    Do you have this statement from Hyundai in writing? My son got an oil change in our Hyundai and they talked him into a flush…the engine blew up the next day…the car was in perfect working order, no lights on and regularly maintained.

    Reply
    1. MECTILE Avatar
      MECTILE

      “I have been in contact with our technical department both locally and overseas and they have advised that Hyundai don’t recommend an engine flush at service.” (Hyundai Customer Care)

      Reply
  3. peter Avatar
    peter

    they looking for money so they easily recommended for engine flush ( some time they make us afraid you must do it otherwise engine will damage )

    Reply
  4. Jane Avatar
    Jane

    Thank you everyone who posted here. And my partner who alerted me that what you wrote would be correct. I almost let them flush the engine, and I couldn’t afford it either. And if it had ruined my engine that would be even worse!

    Reply
  5. Bob Lake. Avatar
    Bob Lake.

    Just 1500 mls after its 70000 ml service the timing chain broke on my 5yr &6mnths old Santa Fe. Main dealer serviced from new, they had recommended engine flush. Engine ruined,requires replacement. Hyundai and dealer no help, as warranty had expired. What a shower never buy another Hyundai.

    Reply
  6. Mark mace Avatar
    Mark mace

    So basically don’t even do it right that’s what I’m getting from all these replies I’m not going to do it what if they tell me than your warranties no good I can show him that Hyundai does not recommend it now I am in a Kia Optima but it is a Hyundai motor correct.

    Reply

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