I purchased a 19 silverado new back in fall of 19. I have been taking it to the dealer for services since I have a lifetime powertrain warranty. Well ever since Covid they for some reason stopped doing oil changes on the weekends. So in order for me to continue to do this I have to take time off work during the week and drive to the dealer an hour away and get it done. I am more then capable of doing it myself since I do everything else I own myself. If I use the correct oil and keep all receipts and pictures of the mileage I should be good waranty wise right? I don’t recall anything stating I had to return to the dealer for service. Last time I had it done it was $105. My local napa has Mobil 1 on sale all the time and I can do it way cheaper myself.