Slow Leaks: Why Your Tyre Keeps Losing Air

Every fortnight, without fail. You walk to the car, notice the tyre looks a bit flat, pump it up, and get on with your day. You've adapted to it like a houseplant that needs watering. It's become routine.

It shouldn't be routine. It's a problem, and left alone, that problem will eventually destroy the tyre.

KEY TAKEAWAY: A tyre that slowly loses air isn't just annoying — it's progressively damaging the tyre every day it runs underinflated.

Common Sources of Slow Leaks

Bead leaks: The bead is the edge of the tyre that seats tightly against the wheel rim. Over time (especially on alloy wheels)  corrosion builds up on the rim face. This creates microscopic gaps that allow air to escape. Completely invisible from outside the tyre.

Valve stem and valve core issues: The rubber valve stem perishes over time. The small internal valve core can loosen from vibration. Check by pressing a wet finger over the valve. If bubbles form, you've found the leak.

Hairline cracks in the rim: From impacts or corrosion, can allow very slow air loss without visible damage.

Micro-punctures: From very fine wire, sewing needles, or glass shards. Almost impossible to locate visually. Submerging the tyre in water and watching for bubbles is the traditional reliable method.

The Ongoing Damage

A tyre consistently 5-10 PSI low is running under-inflated. This increases rolling resistance, wears the outer tread edges faster, generates heat in the sidewalls, and progressively weakens the tyre structure. What might have been a long-lasting tyre is shortened significantly by months of neglect.

Come visit us today and let us find it properly. Dismounted, inspected, and fixed correctly. We're in Hallam, Glen Waverley, Wantirna, and Cheltenham. Proudly serving the community of Eastern Melbourne.