That 6 to 9 pm stat is the real kicker. Peak hours eat your bill alive because everyone gets home and cranks it at once. Running a fan plus setting the thermostat higher during that window saved me like 25 bucks last month. That $210 estimate should be a wake up call, not a slow bleed all summer.

That whole "same spot on every truck" thing sounds more like people just repeating what they heard at the counter, not any real pattern. I've got a 2017 Silverado that's been through five Colorado winters and my brake lines are fine. The guy at the salvage yard wants to sell you a story because he's got six trucks sitting there and he knows that's the easiest excuse for why they ended up there in the first place. Salt and road grime hit every vehicle the same way, so if it was truly a design flaw you'd see it on every brand and model in that yard, not just GM trucks. Honestly, most of those trucks probably got traded in or written off for crashes or engine problems, and the rust is just what you notice after the fact. I'd say check your lines sure, but don't start blaming the truck when a little corrosion is just what happens to any vehicle that spends time on winter roads.