To maintain running boards, clean them regularly with mild soap and water, inspect for damage, and apply protective treatments based on the material. Proper care prevents rust, cracking, and fading, extending their lifespan by years.

Cleaning Your Running Boards

Wash running boards every two weeks or after off-road trips. Use a bucket of warm water with mild automotive soap and a soft brush or microfiber cloth. Avoid harsh chemicals or abrasive pads that can scratch the surface. Rinse thoroughly with a hose and dry with a clean towel to prevent water spots. For stubborn mud or grime, a pressure washer on low setting works well, but keep the nozzle at least 12 inches away to avoid damaging seals.

Inspecting for Damage and Wear

Check running boards monthly for cracks, rust, loose bolts, or peeling coatings. Look at mounting brackets and hardware: tighten any loose bolts with a socket wrench. If you find rust spots on metal boards, sand them down with fine-grit sandpaper and apply touch-up paint. For plastic or composite boards, inspect for sun damage or warping. Replace any broken or severely corroded sections promptly to maintain safety and appearance.

Protecting and Preserving the Finish

Apply a protectant every three months. For plastic running boards, use a UV protectant spray to prevent fading and cracking. For painted metal boards, a coat of automotive wax adds a protective layer against road salt and moisture. For stainless steel or aluminum, use a metal polish designed for automotive use. Avoid silicone-based products on rubber steps, as they can cause slippage. Always test any product on a small hidden area first.

Seasonal and Heavy-Use Care

In winter, rinse running boards frequently to remove salt and de-icing chemicals, which accelerate corrosion. Apply a silicone-based lubricant to hinges and moving parts if your boards fold. After off-road driving, remove mud and debris from underneath to prevent buildup that can trap moisture. If you frequently carry heavy loads, check for flexing or stress cracks. Consider adding protective film on high-wear areas for extra durability.

Frequently Asked Questions

Can I use WD-40 on running boards?

WD-40 can be used to loosen rusted bolts or remove adhesive residue, but it is not a long-term protectant. For general cleaning and protection, stick to dedicated automotive products.

How often should I replace running boards?

With proper maintenance, running boards can last 5-10 years or more. Replace them when you notice significant rust, cracks that compromise strength, or broken mounting brackets that affect safety.

Do running boards affect fuel economy?

Running boards can slightly reduce fuel economy due to added weight and drag, but the difference is usually less than 1-2 percent. Their convenience and protection often outweigh the minimal impact.

The Bottom Line

Regular cleaning, inspection, and protective treatments keep running boards functional and attractive for years. For more truck care tips, check out our guide on truck accessories.

More Truck Accessories Guides


Video Guide

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