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Omega General Help / Re: Loosing coolant
« on: 07 March 2024, 17:27:43 »There did appear to be a duff batch a few years ago, a few people, myself included, got caught out........
HBV is quite new so not suspecting that either.
I wouldn't completely dismiss the HBV, as my original on my 3.2 lasted around 80K miles but it's replacement lasted less than 5K miles. The replacement was purchased from a main dealer and the box had the hologram on it. The second replacement was still OK when I sold it. Worth checking using the max high temp, max low temp method.
I did get 2 new ones a couple of years ago with GM numbers on them, hopefully mine's isn't one of the duff batch.
The other snag is that although they're unused, they are still just old.