Originally Posted By: gathermewool
How many metal shavings did you see when you drained the oil? I'm still on the fence with respect to early changes in the beginning of an engine's life (leaning toward them not being necessary.) However, my reasoning has more to do with microscopic wear particles than anything even visible.
The larger visible particles are hopefully caught in the oil filter. Only larger ferrous metal pieces sit in the oil pan and they represent damage rather than break in.
Filter can cutters are used to cut the filter can off near the mount base so you can see what is on the filter pleating.
There is no way an early change is going to hurt an engine, it is only going to help. And the break-in period is going to dictate the performance of the engine for the rest of it's service life.
Prior to all current engines using hydraulic roller cams and the current multi-step cylinder bore finish profiles, the break-in was more critical, but it is still critical for optimum performance.
I bought a 2011 Acadia and changed the oil to 5W30 PP at 1,050 miles and will perform the second change at 3,000 miles. This engine (formerly) had issues with the timing chains streching out of spec by 40K miles and throwing the MIL. My point is that some engines will certainly benefit more from early and frequent break-in oil changes than others.