I might be mistaken but SLT came with 5.3 and 6.2 was optional I don't remember when 6.2 was offered as option which might be why you see numbers as they are.
How many of these engines do you think they have taken back and went thru them with fine tooth comb.
They have rebuilt same engine and put them in vehicles ran thru all different kind of driving circumstances they have a plan, and they know what is causing most of these failures. This isn't GM...
The warranty on engine should be extended but your bumper to bumper and powertrain will be extended for as long in days in period that you didn't have use of vehicle.
Does dealer put 9 quarts on work order when you have them change?
I change my own and add 8 start then let set and add more until 3/4 on dip stick probably 1/2 quart or more.
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