What are the disadvantages of a horizontally opposed engine?

2 Answers
ONorah
07/29/25 4:36pm
The horizontally opposed structure is relatively complex, and there are issues such as oil lubrication that are difficult to resolve. Due to gravity, the horizontally positioned cylinders cause oil to flow to the bottom, leaving one side of the cylinders inadequately lubricated. The high-precision manufacturing requirements also lead to higher maintenance costs. Additionally, the wider engine body makes it less favorable for layout. Introduction to automotive engines: 1. The automotive engine is the device that provides power to the vehicle, serving as the heart of the car and determining its power, fuel efficiency, stability, and environmental friendliness. 2. Depending on the power source, automotive engines can be categorized into diesel engines, gasoline engines, electric vehicle motors, and hybrid engines, among others.
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VonKeira
08/14/25 5:54am
I've been driving a car with a horizontally opposed engine for over five years, and the most frustrating part is the hassle of maintenance. Last time I had the spark plugs replaced, the mechanic said half the engine bay had to be dismantled, and the labor alone cost over 800 yuan. What's more, this engine is particularly prone to burning oil—I have to check the dipstick every month, or the warning light pops up in no time. The low ground clearance is another issue; I'm always afraid of hitting the oil pan when driving over rough roads. As for parts, waiting for an imported piston ring can take half a month, and the repair costs are significantly higher than those for regular cars. After long-term use, I've noticed uneven cylinder wear, and specific oil must be used during maintenance. It's truly expensive and exhausting.
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