fazedesign said:Cue said:There's no such thing as running in oil, omg that's the strangest thing i've heard someone come out with for a while..... lol
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There isn't such as thing as "running in oil" however until fairly recently cars would be supplied with a different grade of oil (often mineral I think) which was then swapped out for the preferred oil at the first service (often a 1000 mile oil change).
So although there wouldn't have been a specific formulation for running in, its easy to see how the term running in oil came about.
that was fazed out during the early eighties!!! i can't think of the last car that was supplied with a specific grade of oil for cleaning the engine in the first 1000 miles.
Having said that i know ferrari even as recently as the 360 supplied the car and recomended the first interval to be sonner than the set interval.