Every new Buick Enclave for sale comes standard with a 3.6-liter V-6 engine. This powerful heart provides the 2023 Buick Enclave SUV with 310 horsepower and 266 pound-feet of torque, getting you up to speed with smooth performance. The new Buick Enclave SUV is as good on gas, delivering up to an EPA-estimated 18/26 MPG (city/highway)1 during your commutes in Jacksonville, FL.