What Are the Pros and Cons of Installing an Engine Guard Plate?

2 Answers
LeMadeline
08/31/25 5:09am
Installing an engine guard plate has the benefit of preventing component wear, but the drawback is that it may increase the risk of injury in the event of an accident. Below is an introduction to the pros and cons of installing an engine guard plate: Pros: During daily driving, high speeds can cause the wheels to pick up debris from the road, such as mud, leaves, rainwater, and more. These materials can potentially corrode the exposed components of the car's undercarriage. Installing an engine guard plate can help protect these components and prevent wear. Cons: All car designs prioritize safety. In the event of a major collision, the engine is designed to sink downward to prevent it from moving backward into the passenger cabin, which could harm the occupants. However, if an engine guard plate is installed, this safety feature may be hindered during an accident, increasing the risk of injury to the occupants.
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VonAdeline
09/12/25 8:24am
I have some real feelings about installing an engine guard. Last year during a road trip on mountain roads, there was a loud clunk when the undercarriage scraped, and upon returning home, I saw the guard was dented. Without that steel plate, the oil pan would probably have been shattered. But if we're talking about drawbacks, the most annoying part is the extra layer that needs to be removed during oil changes, adding time each time while waiting for the mechanic to unscrew the bolts. I've also noticed slight wind noise at high speeds, but compared to its role in blocking mud from splashing into the engine bay, that hum is really nothing. Some say it affects cooling, but remember, cooling mainly relies on the front grille and radiator fan, and guards usually have cooling vents.
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