Also, I've noticed our Charger police cars have spring in upper hoses (reverse flow I guess?), so that kind of defeats the theory they were for factory fill purposes.
Go back and think about what you just said.
Not very helpful. If I missed something, excuse me! Can you just clear it up for me? Admittedly, I'm not a genius and might have missed something. But, I believe someone wrote they DON'T use springs anymore because they have a different method for factory fill, and that's what the springs were originally for, and NOT for eliminating collapsing hoses during consumer use.
