Uploaded August 2023 | Updated September 2026, 1 week ago

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C2 gauging test, new blue diesel, Alco update and NG15 news

Please note that at 21.15 the new diesel will be named Moel yr Hydd. Sorry for the confusion.

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Prawf mesur C2, disel glas newydd, diweddariad Alco a newyddion NG15