I just got off the phone with RLI. They say ABSOLUTELY my 10w30HD has a heathy dose of copper on it. It's part of the oxidation stability package. Their HD oils have always used this technology. I mentioned the 10w30 UOA here with zero copper and they claim that's impossible..... Unless the 10w30 used was the PCMO version. So Clever .... You must be using PCMO, not HD. Good news is.... Doesn't look like your truck noticed!!