2012Chevy

I just brought my first Chevy last Tuesday. It's a 2012 Silverado 1500 Lt. 4 doors 4by4 with 38,000 miles. One owner. Looks like brand new. I'm wondering how do I keep it from rusting out. I want to keep it looking new

SWHouston

Undercoat (spray on Tar type substance) works well for under chassis and in the bed as well. Be sure it's clean first.