Take a look at the ingredients - does it say there is oil? If so then they are def not free. Is suspect this will be case because I can't see there being 7 syns worth in a little sachet of flavouring.
I've used the tesco value noodle's as free without the powder sachet from the very beginning - i suppose if it works i'll stick to it, but if my loses slow it could be something to look at!!
xxx