Knowing that my 2005 Dodge Grand Caravan uses almost a quart of Havoline every 1000-1200 miles, should I stick with it? I like the moly count. Or should I go whole hog on Motorcraft/TropArtic? My van only used about a half quart in 3000 miles with this oil. Does Havoline offer any advantages over Motorcraft/TropArtic? Opinions please.