A single freeze can halt operations across South Central Texas

Posted by Tom Dennis on Nov 17th 2025

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A single freeze can halt operations across South Central Texas. At SoTex Tools, we’ve seen cracked hoses, split seals and seized pumps from one cold night. Here’s how to prepare your systems for winter—fast and effectively.

Make sure you are running a Winter-Grade Hydraulic Fluid

Cold thickens oil, straining pumps.

Use ISO 32 or ISO 22 synthetic (pour point below -40°F).
Test for water (>200 ppm = replace).
Flush old fluid—contaminants freeze first.

Protect Hoses from Freeze-Cracking

Moisture in lines expands and bursts hoses.

Insulate with foam sleeves or heat trace tape.
Drain low points after shutdown.
Upgrade to thermoplastic hoses—50% more cold-flexible.

Winterize Cylinders and Pumps

Ice on rods destroys seals.

Apply anti-ice grease to chrome.
Install rod boots.
Cycle daily to circulate warm fluid.
Store indoors when possible.

Boost Battery & Electrical Reliability

Cold cuts battery power 30–50%.

Load-test batteries (replace <80%).
Use block heaters on power packs.
Clean terminals + apply dielectric grease.

Pneumatic Compressors - Make sure your airlines and compressors are not exposed to the elements, protect them without obstructing the intake, leave your compressors running when a freeze is imminent leaving a valve cracked open to keep air moving through the system

Winter Shutdown Checklist

Drain water filters
Fill with ISO 32 oil
Insulate hoses
Cycle 10 mins daily
Check battery (>12.6V)
Grease rods + install boots
Leave compressor running and a valve cracked open

Act Now—Avoid Downtime - Call: 830-433-7267

One frozen line can cost thousands. SoTex Tools offers:

24/7 emergency repair
Same-day parts & fluid delivery
Free winter audits