I know this issue has probably been covered numerous times on other threads but are the air suspension systems in the Generation 5 rams really better then air suspension systems in the Generation 4 rams. By "better" I specifically, 100% mean cold weather reliability? I live in Ontario Canada and it can easily hit well below freezing for several days where I'm at. What's more, I don't drive a ton so there will for sure be days when the rig just sits there freezing. Should I be worried? Was the a/s legit upgraded in late model Gen 5 years? And I guess more specifically, does anyone know what the upgrade or redesign was? Sales people like to toss around words like upgraded or re-designed...but that really doesn't tell me about what was re-designed???