The 2010 Fusion was Ford's mid-size workhorse that quietly earned a solid reputation during a period when domestic sedans were finally getting their act together. The SEL trim sat near the top of the range, offering a nicely equipped package for buyers who wanted comfort without stepping into Lincoln territory. Under the hood is Ford's 3.0L Duratec V6, a naturally aspirated gasoline engine rated at 240 horsepower in this application. It's a smooth, reasonably punchy setup that gives this Fusion...