is there any way of knowing if they are oil guzzlers, short of long test drive?
Not that I know of. I've only been told by Audi that cars with engine codes of CDA, CDZ and CDN are confirmed oil burners. It was a real issue for 1.8-2 litre TFSI engines from 2008 -12
he's already been given the swerve by audi. he just has a litre of oil in the boot. shame, as it is a nice car.
is there any way of knowing if they are oil guzzlers, short of long test drive?