What product is best for treating oak veneer doors?

[whataboutbob]

We have oak veneer internal doors fitted a couple of days ago and they treating as mucky finger marks are starting to occur. I'll need to do it myself as funds are v low. On my wooden kitchen worktop i use an oil called Sadolin which I think is very good. Would this be OK? Some people say varnish is more appropriate. I'm confused.

[PigletJohn]

The instructions usually say do not use oil or wax on veneered doors.

So use satin or matt Diamond varnish (not gloss which looks horrid).

[whataboutbob]

Yes Piglet I'll come clean- the manufacturers said to use varnish, but not satin. I'll check out the matt Diamond varnish. Do you know why oil is a bad idea?

[PigletJohn]

No, but maybe it attacks the glue that holds the veneer on.