Wanted to get the various opinions of the BITOG universe....I have a 2015 GMC Yukon 5.3L that calls for 0w20. All of my other vehicles (all GM) call for 5w30. For simplicity I would like to run 5w30 in all of them, but wanted to ask about the Yukon. Would it be a problem if I ran 5w30 in it? I live in Maryland so we are a 4 season state. Can get pretty hot in the summer and can get pretty cold in the winter. Would 5w30 cause any issues for this engine? Can this engine manage with 5w30 or is 0w20 a must and should not be deviated from? Thanks.