How to Store a Vehicle in a Storage Unit | TGI Storage San Marcos

Published on 5/12/2026
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Storage Tips  ยท  San Marcos, TX

How to Store a Vehicle in a Storage Unit

TGI Storage San Marcos  ยท  6 min read

San Marcos, TX sits in the Texas Hill Country where long hot summers, humidity, and UV rays accelerate damage to any unprotected vehicle.

Choose the Right Storage Unit Size

Before anything else, measure your vehicle โ€” length, width, and height โ€” and compare it to available unit sizes. A standard car or motorcycle typically fits in a 10x20 unit. Larger trucks, boats on trailers, and RVs require larger drive-up units. TGI Storage San Marcos has a range of unit sizes to fit your vehicle properly.

Prepare Your Vehicle Before Storage

How you prepare a vehicle before storing it is just as important as where you store it. Follow these steps before any vehicle goes into storage in San Marcos.

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Clean thoroughly
Wash and dry the exterior completely. Remove all food and organic material from the interior. Dirt and moisture cause corrosion, mold, and paint damage over time.
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Change the oil
Old engine oil contains contaminants that corrode components during storage. Change the oil and top off coolant, brake fluid, and power steering fluid.
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Fuel up + stabilizer
A full tank prevents moisture buildup. Add fuel stabilizer to prevent gas from degrading โ€” essential for vehicles stored longer than 30 days.
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Maintain the battery
Batteries drain during storage. Disconnect the negative terminal or use a trickle charger to maintain full charge throughout the storage period.

Protect the Exterior

Even inside a storage unit, covering your vehicle adds an important layer of protection. Use a breathable, fitted vehicle cover โ€” not a tarp โ€” to prevent dust buildup while allowing moisture to escape. For motorcycles, cover the exhaust pipes to keep insects and moisture out. For boats, ensure the hull is clean and dry before covering.

Indoor vs. Outdoor Vehicle Storage

Indoor storage units provide the highest level of protection โ€” shielding vehicles from weather, UV exposure, pests, and Texas heat, UV rays, and Hill Country humidity that accelerate paint fade and damage rubber seals. Outdoor covered storage is a good middle-ground for larger vehicles like RVs and boats. TGI Storage San Marcos offers both options to fit your vehicle and your budget.

Long-Term Storage Checklist
โœ“Place vehicle on jack stands to prevent tire flat spots
โœ“Release parking brake โ€” use wheel chocks instead
โœ“Place moisture absorbers inside the cabin
โœ“Visit monthly to start the engine and check fluid levels
โœ“Update your vehicle insurance to reflect storage
Ready to Store Your Vehicle?
TGI Storage San Marcos offers clean, secure, and flexible vehicle storage in San Marcos, TX.
Call (512) 722-7228