 Being a lifetime Silverado owner, I decided it was time to try something new.  Once past the test drive phase, I felt I may be making a mistake as it felt as if I was driving a heavy and uncomfortable box-truck and the ugly interior just wasn't doing it for me.  But, I was willing to try it out, so I took it home with me.  Within the first 2 months, the truck started feeling like it was lacking power, or as if I was towing something.  I thought maybe it may be bad gas so I made sure to pump Chevron the next fill-up.  Long story short, I gave up on the truck after a few miserable dealer visits and traded it in for Dodge Ram, and never looked back.