When it comes to engines, wear is the enemy. Many parts are victim to friction, but the cylinder walls are some of the unluckiest areas of an engine. With each rotation the piston rings scrape up and ...

Hot-rodders share a common denominator, irrespective of brand loyalty: get from A to B as fast and as inexpensively as possible. Within the scope of the engine, that means focusing primarily on the ...

With more than 160,000 miles on the 4.0L I-6 in our 1997 Jeep Cherokee, engine performance and reliability are not as great as they once were. The engine suffered from various gasket and seal leaks, ...