Hi Bhupinder, Plz check if there is dip stick to check automatic transmission oil. If not you need to check it manually by inspecting via oil filler nut. Soon I will post it's video.
Hi, It depends on oil which you are using, mineral oil should be changed after 6k kms and synthetic after 8k kms. Synthetic or mineral, depends what you are using since beginning, will not suggest to switch between oils. Go for Castrol.
Flywheel replacement is not required, 85PS genuine clutch & pressure plate with release bearing will cost around 15k, including labour charges. From ASC it will cost approx 25-28k.
5w-40 full synthetic engine oil hai or 15w-40 semi synthetic, Renault service center dono use karte hai, so it's up to you. Personally I don't like full synthetic for Duster as per my experience in extreme conditions.