Why not try going the full 10,000 miles like the one posted here.
http://theoildrop.server101.com/ubb/...=003273#000000
I personally think that 10K was somewhat excessive, however. I think that 5K-6K is perfectly reasonable. I would run regular dino for the first 10K-15K with perhaps 5K intervals before you switch over the Synthetic. Then that 10K interval should be no problem at all.
I personally am going to change the oil every 4K-5K with regular Pennzoil up until 12k-15k, and then switch to Pennzoil Platinum.
As long as you use an SM rated oil, a quality oil filter, and follow what the manual suggests for an Oil Change Interval (OCI), you really can't go wrong.
Do what will help you sleep better at night

, and enjoy your road trip this week