Check Tire Hardness for Sub-Zero Winter Safety

Cost Savings

Checklist Tasks

• Measure tread hardness with a durometer at sub-zero temperatures.
• Compare readings to manufacturer specs for unsafe compound hardening.
• Inspect sidewalls for micro-cracks indicating cold-induced brittleness.
• Check for uneven tread hardness indicating localized degradation.
• Warm tires for 10 minutes, then re-measure for flexibility recovery.
• Document all readings and findings for warranty or replacement claims.
• Examine tire age codes as older compounds harden faster in cold.
• Test grip at low speed on a safe icy area to confirm traction.
• Inspect for embedded salt or de-icer contributing to compound breakdown.
• Check for flat spots after overnight parking for loss of pliability.
• Verify tire pressure is within 2 psi of cold specs to prevent hardening.
• Consult manufacturer bulletins for any model-specific cold weather issues.