Preventative maintenance is essential for ensuring your vehicle is as safe as possible.
This can be accelerated by exposure to heat and sunlight, and research suggests tyres age more quickly in warm climates with high ambient temperatures.
Poor storage and infrequent use can also speed up how quickly a tyre ages, along with cars that are only driven occasionally. This is because regularly-driven tyres often wear out and need to be replaced before ageing becomes a major safety concern.
With this in mind, it makes sense that spare tyres stored in vehicles are particularly prone to aging problems, as they rarely get used and over are overlooked when it's time to replace the other tyres.
Even if it looks like it has good tread, the internal structure of the tyre could be damaged - so make a habit to replace your spare every time you replace your main set of tyres.
In terms of mileage, many long-lasting tyres these days are able to get over 120,000 kilometres out of their tyre, but this is dependent on environmental and driving factors.
Another process of tyre ageing is oxidation of oxygen and ozone from the air, which affects the rubber's elasticity and strength and impacts the integrity of the rubber and steel bond.
Breakdown of this bond can also be caused by water permeating through the rubber, bonding with the brass coating on steel belts. This weakens the bond and reduces both the tyre's strength and its heat resistance.
If it's not, the tyre strength can be impaired.
Because exposure to harsh weather conditions can increase ageing, check your sidewalls for signs of cracking to make sure they're still in top shape. This is particularly important for tyres over four years old, and those that are often parked outside.
Replace your spare tyre when you upgrade your driving tyres, and if you suspect they're ageing more rapidly than they should be, take them down to the an expert in car servicing in Brisbane.
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