They dont blow at 100,000 miles lol modern vehicles are just considered ready for the junk yard, mine has just over 100,000 miles and the reason I want a high mileage oil.@Fishtaco No, their consensus is wrong.10w-30 is not to thin of an oil, it doesn't matter the country you are at, heat is heat for Australia or for Texas. Ask yourself why most engines blow at 100k over there. It might not harm it right away but maybe in the long run it might. 60 its just to heavy, the fsm clearly states 10w-30 for a reason.
If your rig starts to burn oil putting 20w-60 is not a fix either.