3800 Series II V6 LeSabre's standard 3800 Series II V6 delivers 205 horsepower and 230 lb-ft of torque-all the engine you need for quick acceleration and confident passing. With an EPA estimated fuel economy of 19 mpg city and 30 mpg highway, the 3800 V6 also gives you the kind of gas mileage that helps keep you away from the pump and on the road.