I do remember the technical articles mentioning the cardboard ends coming off (around the early 90s was it not a problem?). Brave to say I admit but maybe it was more to do with the adhesive used at the time (maybe the composition/treatment of the cardboard) etc on the cardboard rings. Surely no rings whilst being an improvement can come with other issues (I.E the risk of unfiltered oil coming through), an issue which the Classic Gold filters seem to have going by the pics:


As big a shame it is maybe the Spin On filters are the way forward on the assumption the seals in the adaptors are changed on time
.

As big a shame it is maybe the Spin On filters are the way forward on the assumption the seals in the adaptors are changed on time
.

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