Looking for some advice on the correct oil for my car.
Its an Audi a6 2.7t c5 shape. Its covered 170k and I want to make sure I'm using the correct oil for my cars age and miles and of course the UK climate LOL. I've just got back from Halfords the staff there told me I should use use 5/30 Fully synthetic but I never trust the word of them usually.
Which oil do you good people recommend?