The dealership maintence guy told me I needed to change the oil the first time at 2000 miles. My owners manual says 4000. Now the gold wing specialist at the dealer tells me I should have changed the oil at 600 miles, and again at 3000. He says since we are in Louisana and it is so hot and humid, I should change it every 3000 after that. The book says every 8000. I am confused. I had it changed after the first week of riding...2300 miles. Any comments? I plan to switch to synthentic on the next oil change. I ran synthetic in all of my last 4 bikes(over 150,000 miles) and no problems. This is my first wing.