Walmart finally got a shipment of Motorcraft 5w30 in. As my 9 year old daughter Lindsey loaded 5 quarts into the nasket I found the Super Tech ST16 filter but then I was drawn to the big grey jugs of Super Tech 5w30 full synthetic sitting so seductively under the $11.88 smiley face sign.Some quick foot stomping math told me the difference in price was $4.78 between the two. That's barely a meal at Mcdonalds.My daughter said no, we should stick with what the guys said on the website (BITOG) and besides the big jug is too heavy for her to pour the oil into the engine. That's her job on oil change day. Anyway I won.Even helped her put the MC back on the shelves.The question I have is: the label says formulated using "100% synthetic base oils and a high performance additive system." What exactly does this mean and do I owe my daughter and several members on this forum an appology? I long for the pre BITOG days when it was Fram/Valvoline for the Blazer and Motorcraft/Motorcraft for the Grand Marquis.