Yes I've noticed my 2015 Silverado has a slight issue with the undercarriage coating, seems like either it wasn't applied right in some areas or those areas may not have been prepped correctly?? I'm an aircraft mechanic and we use this product called ardox AV8 and AV40, it's a tough corrosion proof coating which you can buy online and we use it to protect our planes from corrosion, I'm going to coat the whole underneath of my truck this weekend in hopes that it'll stop from a future rot out.. I'm also open to anyone else's ideas or methods... Winters coming lol
