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In an oil-cooled engine, the engine oil circulates through passages within the engine block and oil cooler. As the oil passes through these areas, it absorbs heat from the engine components. The heated oil then flows to an external oil cooler, which is often similar in function to a radiator. Here, air or, in some designs, water cools the oil before it recirculates back into the engine. This continuous cycle helps maintain a stable operating temperature, even under strenuous conditions.


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One of the most significant advantages of a 90% 20-seater coach is its seating capacity. The 90% designation refers to the optimal occupancy rate, meaning that the coach is designed to comfortably accommodate 18 to 20 passengers. This is an ideal number for many group activities, such as family trips, small corporate meetings, or school outings. Unlike larger buses that may feel empty with fewer passengers, the 20-seater coach strikes the perfect balance between spaciousness and intimacy, allowing passengers to interact freely while enjoying ample personal space.


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