So how many miles until i call my truck broken in. We did the 100 mile easy break in / oil change. The 500 mile oil change. Now it gets mixed. My brother says 1000 mile oil change and to baby it. The mechanic says after the first 100 miles and defently 500 miles. Just drive it normal. Whats going to break is going to break.

Also when we did this. We put in new spark plugs. Any reason to change them out now that I went almost 600 miles on the new engine?

Thanks,

Josh