What oil Post Posted 12 April 2006, 8:51 AM #649565 (In Topic #78263) Miked318 Moderator What oil 1.8 DX engineWhat's the VAG recommended? 15w40 or 10w40? :dontknow: Post Posted 22 April 2006, 10:32 PM #651127 lhasa Old Timer I normally put 15/40 in my engine but sometimes I'll put 10/40 depending on price, IMO not much in it. There are too many online users to list. Forum home Engines Big Block Carb Engines