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Message: <blockquote data-quote="stephen" data-source="post: 330" data-attributes="member: 120"><p>Ever since I own a car, have been using engine oil additives ... coz i dont use fully-syn oil ... coz service requirement was every 5k kms (cars under warranty). Been using Bardahl No.1 for a long time & seems engine run a bit quieter. Years ago when the product first came, they tested on a Proton .... poured it in, run it a while, then drain it out completely (just like the X1R advertisement re the plane) ... car then travelled from Penang to KL or was it all the way to JB? ... the car made the journey without any engine oil! So now that my ride is on fully-syn Shell Helix Ultra every 10k kms, do i need such additives ..... & which is better (notwithstanding Bardahl No.1 is only RM12 from AAM shop & X1R is RM68)?</p></blockquote><p></p>