Community Forums:

I agree with you.
I have read along with you too, but being the gospel, doesn't fly with me!

The trouble is with producing most cars they are divided up in mid year within only month numbers dividing the VIN. They just will not reflect all the changes with production.
Factory tags can note what supply vendors or when present stock amounts provided actually do run out but who has access to those?
This is why there is that fine print on remote pages of documents saying " subject to changes in production for product improvement changes."

We all live with day to day changes in our lives, so we cannot expect less OR when biodegradable wires stopped. (:-)
Sometimes I think, but cannot prove it, that the early strong engine cleaners soaked the wiring as it stayed in the harnesses.
It can just as easily not get rinsed out. Add on engine heat and there we are bad wiring.

Only an idea though!
Phil