Yep. Too bad we're flat rate otherwise I'd be putting my kids through college with this BS.183 is June 25? So that’s it, engine change? No bsing around, no engine code xyz, no change oil weight? Just plain and simple, change motor? Correct?
The oil weight is a complete red herring. I've never seen one of these engines open with excessive wear that wasn't neglected. All on 0w20 per fleet contract. That said, I run 5w30 in my 5.3 to take advantage of savings since we have two others vehicles that take that weight. These engines aren't fragile and I know farmers around here that out of sheer laziness run 5w/15w40 diesel oil in them because that's what they have on hand. Not a great idea when it's cold as space outside but you can't tell them anything.