What is, is. Sometimes life comes at you and there is nothing you can do except bend over and take it up the ass. I'm not happy about what happened, but I think I made the right decision as it applies to my family. Fortunately, I had already started working on a plan to improve things for the long term. I will be back in a Tahoe eventually. I just have to live with this ugly Gold ext/brown int Malibu. I'm blessed to be familiar with the engine inside and out as my wife's Cobalt has it too. Give me a years and I'll be in a better situation and get a new Tahoe instead of a used one.
Jenna, I believe this was a random failure. I always used top tier fuel, usually Shell or Chevron. The last fill up the Tahoe got was Conoco mid grade (88 octane). I used mid grade because of my tune. As for oil changes, I always performed them myself. I used Wix filters and and Valvoline Max Life 5w30. Last oil change was Saturday. DIC said 10% oil life remaining at the time of the oil change.