The 2018 Ford Focus ST has a 2.0 L 4Cylinder engine that needS5W-30 Synthetic Motor Oil in above -20 F temperatures or 0W-30 in below -22 F temperatures. The capacity for the vehicle iS5.7 quarts with a filter and the torque for the drain plug is 20 ft/lbs. The difference between synthetic and conventional is that synthetic is man made using chemical compounds and contains fewer contaminants than conventional. Oil is important because it will help to keep the engine clean and parts of the engine lubricated. Oil doesn't last forever though so You should change it every now and then. For the Focus ST You should change the oil and the oil filter every 3,000 to 5,000 miles or so.
Amber J.
April 9, 2020
For the 2019 ford focus st it is suggested that you use sae 5w-30 synthetic motor oil
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