this particular dino oil is not dexos licensed.... so 2007-2010 lambda use should be fine.
From Valvoline site...
4. Do I have to use a dexos licensed product to maintain warranty for my 2011MY GM vehicle?
Federal law prohibits GM from requiring you to use a dexos licensed product to maintain warranty. In the owners manual it specifically states that a "dexos licensed or equivalent" product should be used. In fact GM even allows the use of ILSAC GF-4 or ILSAC GF-5 products in most vehicles if a dexos or dexos equivalent product is not readily available. Corvettes and certain other vehicles which previously required a GM 4718M type oil will require a 4718M type oil or a dexos/dexos equivalent oil.
for more infohttp://www.valvoline.com/promos/dexos.jsp