Here’s What Made Jeep’s 2.5L Engine So Reliable

The Jeep brand has a long history dating back to World War II, and its engines have evolved from those early flathead four-cylinders to an array of modern powerplants that produce as much as 470 horsepower. Along the way, the Jeep badge has changed hands several times; the brand has been owned by Willys Overland, Kaiser, AMC, Chrysler, and now its parent company, Stellantis. Jeeps of the 1980s and ’90s are known for their particularly reliable engines, most notably the 4.2

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