The 2019 Buick Enclave useS87 octane regular unleaded gasoline. The fuel capacity is 19 to 22 gallons. The Enclave has a MPG rating of up to 18 city and 26 highway and this is considered to be a decent balance of fuel economy combined with power as these are average ratings in the vehiclE-Class. Things like driving smoothly, cleaning out the trunk, paying attention to your tires, turning off the engine at idle, scheduling regular tune ups, keeping your left foot off the brake pedal and choosing the right motor oil can improve your MPG. You can also increase fuel efficiency by installing a clean air filter and replacing your spark plugs.
Ronnie
March 5, 2022
My my Buick Enclave gets terrible gas mileage what can I do to improve it thank you so much Ronnie
Efrain E.
April 9, 2020
A regular unleaded gasoline with a posted octane rating of 87 or higher is recommended for the buick enclave.
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