Does anyone know why or noticed that motorcraft oil filters have almost tripped in price? Stopped at my local Walmart and a fl-820s that usually cost around 4 bucks went up to 11.00. Went on Amazon and bought them for 3.97 a piece then today I looked on Amazon and they are 10.99. I've always liked and used motorcraft filters cause they're a good filter for the price but after this I might as well buy a filter with synthetic media for around the same price.