Whether you’re in the off-season, taking a mid-season break, or just need time away from the track, your race car still needs attention. Letting it sit too long without proper care can lead to performance issues—or worse—trouble when it’s time to fire it back up. Our race car maintenance tips cover everything from short-term prep to winterizing a race car, so your vehicle stays dialed in and ready whether you’re parked for a few weeks or a full season.

Car Maintenance Plan for Storage and Downtime

Both mid-season race car care and full winter prep require the right steps to protect your investment and ensure your setup stays sharp. In order to maintain your car when you’re not racing, have a solid plan in place for storage and downtime. From routine engine inspections to tire and suspension checks, these tips will help keep your vehicle in race-ready condition.

1 | Inspect the Engine—Even When You’re Not Racing

Routine engine checks are the backbone of any solid race car maintenance plan. Even when the car isn’t running, it’s important to spot and repair issues early to avoid bigger problems when the season ramps up again.

• Look for cracked hoses or oil leaks.
• Check for signs of corrosion or rust.
• Confirm all seals and gaskets are intact and tight.

2 | Fog the Engine for Long-Term Storage

For extended downtime, especially during the off-season, fogging helps prevent corrosion inside the engine. It’s a simple way to safeguard your race car.

• Use fogging oil to coat internal engine components.
• Combine with fuel stabilizer for best results.

This is especially helpful for those wondering how to store a race car for winter without tearing down the engine.

3 | Keep the Battery Charged

Neglecting your battery during storage can reduce its lifespan or leave you stranded at startup. A few quick steps now can save time and money later.

• Disconnect the battery or use a trickle charger.
• Check terminals for corrosion.
• Store the battery in a climate-controlled space if you choose to remove it.

If the battery sits too long without maintenance, it can lose charge or develop internal damage that affects performance when racing resumes.

4 | Change the Oil Before You Park It

Engine oil is the lifeblood of your race car. It keeps the moving engine parts lubricated and prevents friction, heat buildup, and internal wear. Always change the oil before putting a race car into storage—even if it hasn’t been driven much—because unused oil can still degrade over time. Left sitting, old oil can collect moisture and contaminants that may cause corrosion or damage critical components.

• Change oil and filters before long-term storage.
• Use top-tier brands like Driven by Joe Gibbs Racing, VP Racing Fuels, or Maxima.
• Pair with a trusted filter like FRAM for the best protection.

5 | Refresh Brake & Transmission Fluid

Brake and transmission fluids degrade with time and exposure to air. Even if the car isn’t moving, moisture can collect in these systems and lead to costly damage.

• Flush brake fluid to prevent corrosion or spongy pedal feel.
• Replace transmission fluid to avoid contamination.
• Use premium products from Wilwood, Allstar Performance, BERT, or TCI Automotive.

6 | Flush the Fuel System

Leaving fuel in your race car during storage can lead to trouble. Over time, fuel begins to break down, causing buildup in the lines, injectors, and filters. Stale fuel can also affect performance and make cold starts harder when you're ready to get back on track. For long-term storage:

• Drain and flush fuel system for long-term storage.
• Inspect lines, clean nozzles, and replace filters.
• Use a stabilizer if any fuel remains in the tank.

7 | Prep Tires and Suspension the Right Way

Tires might be the last thing on your mind when storing a race car—but they matter more than you think. Letting your car sit on its tires too long leads to flat spots and worn suspension components.

• Use jack stands for long-term storage to remove weight.
• Rotate or slightly overinflate tires for short breaks.
• Inspect shocks, bushings, and alignment before and after storage.

Suspension components can also sag or wear unevenly if left under load for weeks or months. Proper prep keeps suspension dialed in and tire wear under control.

8 | Label and Log What You Disconnect

To maintain your car when not racing, it’s essential to stay organized. It's easy to forget what you've unplugged after weeks or months off the track.

• Label disconnected sensors, fuel lines, or wires.
• Keep a written maintenance log or checklist.
• Make reassembly easier and safer with simple documentation.

9 | Keep It Clean and Organized

Don’t underestimate the value of a clean car.

• Wash and dry the car before storage.
• Vacuum interior and remove any perishable materials.
• Organize your fluids, tools, and gear for next season.

Staying organized during a break makes your return to racing smooth and stress-free.

10 | Cover and Seal the Car for Clean Storage

When it comes to winterizing your race car or preparing it for any extended downtime, the goal is to protect vital systems from damage caused by sitting. Dust, moisture, and rodents are the enemies of idle race cars.

• Cover the car with a breathable cover to avoid trapped condensation.
• Seal air intakes and exhaust ports to keep out pests.
• Store in a dry, climate-controlled garage if possible.

These tips are essential parts of any solid race car maintenance plan.

Quick-Reference Chart: Race Car Maintenance Tips at a Glance

Stay Race-Ready, Anytime

Just because your car isn’t on the track doesn’t mean it should be forgotten. These race car maintenance tips will keep your setup in peak condition, whether you’re in between events or parking for the off-season. Trust Behrent’s Performance Warehouse for top brands in fluids, filters, storage gear, and everything you need to keep your car race-ready, year-round.