Cadillac XTS requires 95-octane gasoline. Below are some important notes regarding gasoline usage for the Cadillac XTS: Avoid prolonged idling or low-speed driving: When waiting by the roadside or temporarily parking, if the vehicle remains idling, the engine continues to operate, leading to a significant increase in fuel consumption. In idle or low-speed conditions, due to relatively low engine RPM, combustion within the engine cylinders may be incomplete, which can lead to carbon buildup and further increase fuel consumption. Avoid using high-viscosity engine oil: Under the same environmental conditions, using engine oils with different viscosities can result in varying fuel consumption. If a higher viscosity oil than recommended in the maintenance manual is used, the vehicle's fuel consumption may change. Regular vehicle maintenance: It is essential to strictly follow the recommendations in the vehicle's owner’s manual for regular maintenance or servicing at specified mileage intervals. If the vehicle goes too long without maintenance, the engine oil may degrade, leading to increased fuel consumption. Additionally, a clogged air filter due to dust accumulation can affect engine air intake. Furthermore, owners should regularly check their vehicle's tires to ensure the tire pressure is within the standard range. Overly worn or aged tires not only impact fuel consumption but also compromise driving safety. Maintaining the vehicle in optimal condition is crucial for achieving the lowest possible fuel consumption.
