Reviews by our members

• 5

  thanasis225

  2024-07-24

  Verified purchase

  It was tested on a car where the only symptom was swollen collars and nothing else (the car works normally, does not mix water with oil or inflate the waters) and it seems that there is a small leak of fuel vapors in the waters

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• 5

  thekosckohacker

  2024-05-28

  Verified purchase

  Blue of the stink bug is basically, it works excellently, to speed it up you can suck air from inside it like it is in the bottle.
  Be careful to suck and not blow otherwise it will change color because we exhale a lot of CO2

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• 4

  Kranitis_Konstantinos

  2024-03-23

  It was tested on a car that was blowing bubbles in the expansion tank (initial stage of a burnt gasket, followed by tightened collars, soap in the oil cap, and finally soap in the oil dipstick when the problem worsens). The liquid turned yellow, meaning exhaust gases were passing through!
  HOLTS Wondarweld was tested, which repairs coolant leaks in the engine block, head gasket, radiator, etc.
  A retest was done and the liquid remained blue, meaning the problem was fixed and the repair kit works!! The only drawback is that the black funnel needs to be sealed tightly in the opening of the radiator cap (in open cooling systems) to prevent the escape of exhaust gases, either by cutting it slightly from the bottom or by placing a small bag externally, and with caution because the thermostat must be open for accurate measurement and with a little gas! There is a risk of burns.
  At some point, the coolant will rise and then the color of the liquid on the dipstick should not be taken into account, but before this happens.

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