So, I just bought a brand new 2009 legacy last month. I do alot of hwy driving so I have almost 3k miles on it now. Just yesterday, I noticed grinding going into 3rd gear. It's pretty consistant unless I really baby it. Its much worse at higher rpms.

I don't drive slow, but at the same time - i'm not drag racing or powershifting or anything like that. Is there any way possible I could have damaged a synchro in my tranny with only 3k on it?

Can't imagine how - cars going to the dealer Saturday but I'm afraid they're going to say I somehow abused the car. Thoughts? Suggestions?