We have to bear in mind that Hornby have, by now, manufactured many thousands of these models if not tens of thousands. There are a large number of very good reports about the Class 08 on the web.
If a member has an issue with the running of a model purchased then the best advice is to go back to the retailer. They normally have the experience based on the sales that they make to appreciate immediately if there is an issue. More often than not they can resolve the issue there and then.
There is clear evidence in this thread that this is the best policy.
Hornby, like any manufacturer, do genuinely want their models to run well straight out of the box. Hornby do actually say that overlubrication can damage a model so please bear this in mind.
Its interesting to learn of issues as we might be able to help here so please don't feel that you can't talk about things. Just remember to offer the advice given here to friends elsewhere.
Better still, invite your friends to have a look at the advice given here!
Happy modelling
Gary