- Mon Aug 12, 2019 10:16 am
#84730
If oil is working well then it ought to discolour – from carrying carbon etc. in suspension. Discolouration by itself is no sign of oil being ‘exhausted’ or in need of changing.
I'd be more concerned about quantities of sludge. That would worry me, not in connection with ‘failing’ oil but as a clue to excessive engine wear. I’d certainly want to know what’s producing heavy amounts of sludge.
I'd be more concerned about quantities of sludge. That would worry me, not in connection with ‘failing’ oil but as a clue to excessive engine wear. I’d certainly want to know what’s producing heavy amounts of sludge.