Here's the bottle . Date is on the bottom of the back . Looks to be January 31st of 2006 (?) , if so , this bottle was around 6 years old when put in the car in 2015 . Came from local Honda dealer . Would you use it if it's 14 years old ? Shook the heck out of it . It's about 3/4 full .
I don't know if this thread (below) in the Pilot forum is entirely accurate but it may be helpful. I have not explored further because I don't use DW1.