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

[LeMadeline]

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.

[VonAdeline]

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.

[AmyFitz]

As a veteran off-roader with 15 years of experience, whether to install underbody protection depends on your driving conditions. If you frequently drive on gravel or unpaved roads, aluminum skid plates are worry-free solutions – they're most practical for deflecting flying stones and preventing undercarriage impacts. However, if mainly commuting in urban areas, you might regret installation since it slightly raises ground clearance, making speed bumps more likely to scrape. Additionally, it may disrupt factory airflow design, causing snow accumulation in the engine bay during winter. My old Jeep once had its steering linkage jammed by ice formed on the skid plate after a blizzard – took half a day pouring hot water to fix it.

[Chavez]

When picking up an SUV at a 4S store, they often push underbody protection plates, but don't rush to pay. First, the pros: blocking mud and preventing corrosion is crucial, especially on roads treated with de-icing agents in the north; it also protects the oil pan on rough roads. The cons: added weight may increase fuel consumption, and steel plates might interfere with engine drop-down during a collision. The factory-installed plastic guard is usually sufficient for daily use. If upgrading, opt for magnesium-aluminum alloy—light yet sturdy. During maintenance, remind the technician that for cars with underbody guards, oil should be drained from a specific port for convenience.