Owner's Manual
Page 245
...your vehicle can affect the airflow around it. If you are using 87 octane or higher-octane fuel and hear heavy knocking, your engine. Fuel Use of the recommended fuel is less than 87, you may cause wind noise and affect windshield washer performance. Adding Equipment... to the Outside of Your Vehicle Things you might damage your engine needs service. Gasoline Octane Use regular unleaded gasoline with your dealer before adding equipment to the outside of 87 or higher. This may ...
...your vehicle can affect the airflow around it. If you are using 87 octane or higher-octane fuel and hear heavy knocking, your engine. Fuel Use of the recommended fuel is less than 87, you may cause wind noise and affect windshield washer performance. Adding Equipment... to the Outside of Your Vehicle Things you might damage your engine needs service. Gasoline Octane Use regular unleaded gasoline with your dealer before adding equipment to the outside of 87 or higher. This may ...