Originally Posted by DrD
well - if you go with the assumption that any random crap left around in the system from the engine build will get flushed out after 500 or so miles, changing the oil is just to get rid of that.
If the folks that change that early really
want to get rid of that random crap in the system from the engine build, they had better change the oil every 500-1,000 miles until the car reaches 10-12,000 miles.
There are lots of Subaru used oil analysis' out there showing the engines are still wearing in at 12,000.