My old rs is still running strong with over 300,000 Kms on it. Its doesnt smoke and takes very little oil between changes if any at all. (original motor, tranny & clutch)
I do my oil changes religiously at 5000 Kms which makes all the difference and use an occasional conditioner (I like Engine restore).
Stay away from Quaker state unless you like having a pile of grey sludge under your valve cover ect...
![Smile :)](./images/smilies/icon_smile.gif)
I sold my old 94 rs to a friend, so I still know how its running, its probably got 350 k by now!