With winter temperatures, it is not uncommon for tyres to lose pressure. A popular trick suggests applying petroleum jelly to the tyre valve to limit this phenomenon. But is it an effective and safe solution?
Why do tyres lose pressure in the winter?
When the temperature drops, the air in the tyres contracts, causing a decrease in pressure. On average, a tyre loses about 0.07 bar (1 psi) for each drop by 10 degrees Celsius. This insufficient pressure may:
Speed up tyre wear.
Increase the risk of puncture.
Sick to the road holding.
The idea of petroleum jelly: how does it work?
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