How to detect bubbles in the lubricating oil?
An oil dipstick can be used to detect bubbles in the lubricating oil. The dipstick is then introduced in the oil tank and removed. When observing the dipstick, if bubbles are visible on the surface of the oil, this indicates that there is a significant amount of air in the oil, which may be a sign of problems in the lubrication system. It is important to detect and correct these problems to prevent damage in the engine or in other components of the vehicle.