[Timing chain on 2004 H6 6-cylinder 3.0L EX30]

Thanks for the advise on the timing chain, and the other common problems to look for, guys! I would love to get 300,000 out of this car. This has been a great car, very fun to drive despite being an automatic, and much more trouble free than my previous 88 Legacy wagon that I had until 04. Only unexpected repair was replacing the drive shaft at 110,000.

[Timing chain on 2004 H6 6-cylinder 3.0L EX30]

I have a 2004 outback wagon, Anniversary model, with about 140,000 miles. It has the H6 6-cylinder 3.0L EZ30 engine. I have read that it has a timing chain with no set replacement interval and is intended to last the lifetime of the engine. Is this really the case?, or would it be prudent to replace the timing chain now at 140,000?

 

Any advise is much appreciated!