Willie and Kevin are working their way to the bottom of a fairly common problem with the Gen 3 Hemi engine. While these four-cylinder bad boys may be relatively great on fuel economy cruising down the highway, they also tend to cause oiling issues with the lifters on the cylinders that get shut down. The guys explore all the options for fixing this problem, and while they’re at it decide to give the truck some much-needed power upgrades, as well.