Jeep is downsizing the 2026 Grand Cherokee L's engine lineup. The three-row SUV will drop its traditional V8 and V6 options in favor of a turbocharged four-cylinder powertrain. This represents a significant shift in Jeep's strategy for its premium, three-row offering.
The turbocharged four-cylinder delivers adequate performance to move the Grand Cherokee L's considerable mass, but refinement lags behind competitors. The engine produces sufficient horsepower and torque for daily driving and highway merging, yet buyers accustomed to the smoothness of larger displacement engines may notice more vibration and noise at full throttle.
This move aligns with industry-wide trends toward smaller, more efficient engines paired with forced induction. Manufacturers including Ford, General Motors, and Stellantis (Jeep's parent company) have aggressively pursued this approach to meet federal fuel economy standards. The Grand Cherokee L's previous V8 offered superior refinement but poor efficiency. The V6 represented a middle ground that Jeep is now abandoning.
The turbocharged four-cylinder approach does deliver real benefits. Buyers will see improved fuel economy compared to the outgoing lineup, lowering annual operating costs. Turbo engines also deliver strong low-end torque, which aids towing capacity and acceleration from standstills. On paper, the numbers work.
However, the execution matters. Competitors like the Lexus GX and Range Rover offer six-cylinder options that deliver better NVH (noise, vibration, harshness) characteristics than smaller displacement turbocharged engines. Jeep's four-cylinder, while adequate, doesn't quite match that refinement bar. Over long highway drives, the engine noise becomes noticeable, particularly under acceleration.
The 2026 Grand Cherokee L targets families seeking three