Your Vehicle Storage Secret Weapon: A Guide to Fuel Stabilizers

When you choose a secure storage unit for your car, you are protecting the exterior of your vehicle. But what about the engine? For cars in long-term indoor vehicle storage at a storage facility, the fuel system faces unseen threats. Gasoline degrades in a matter of months, leading to gum, varnish, and a messy inability to start. The team at Gateway North Storage in Firestone, CO, has put together this guide to show you exactly how to protect your engine for a smooth return.

putting gas into a car

Why Fuel Goes "Stale" and the Risk to Your Engine

Gasoline starts to break down in as little as 30 days due to oxidation and the evaporation of lighter hydrocarbons. This chemical change results in thick, sticky varnish and gum that can clog fuel injectors, carburetors, and filters. This buildup prevents the engine from starting or running efficiently, potentially leading to costly repairs and a frustrating start-up after months in storage.

car on the road

Choosing the Right Stabilizer: Gas, Diesel, or Ethanol

There isn't one universal stabilizer, so you must select the correct formula. The three main types are: standard gasoline stabilizers (for up to 24 months of storage), ethanol-specific treatments (which are crucial for modern ethanol-blended fuels to prevent moisture absorption and phase separation), and diesel stabilizers (which address issues like gelling and microbial growth). Always check the label for your fuel type.

fuel tank

The Step-by-Step Guide to Adding Fuel Stabilizer

For maximum effectiveness, the stabilizer must be added to a full tank of fresh fuel before storage. First, pour the calculated dose—usually one ounce per a few gallons—directly into the fuel tank. Second, fill the tank completely to minimize air space and prevent condensation. Finally, run the engine for 5 to 10 minutes to ensure the treated fuel circulates throughout the entire system.

man who just started his car

The Long-Term Benefits for Your Vehicle and Wallet

Using a quality fuel stabilizer is an inexpensive preventative measure that saves significant money on repair costs. It allows your engine to fire up cleanly after two years or more of rest, preserving the fuel’s potency and eliminating the need to drain old, degraded gas. Paired with a secure Gateway North Storage unit, you ensure protection for both the body and heart of your machine.

We offer peace of mind for your vehicle’s exterior with secure and convenient indoor vehicle storage. By taking the simple step of adding a fuel stabilizer, you protect the engine as well. Get in touch with the friendly team at Gateway North Storage in Firestone today to reserve the perfect storage unit for your seasonal car, motorcycle, or boat, ensuring it stays in perfect running condition.

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