Tyre Tread Depth
Regularly check your tyres to make sure there is plenty of tread. The minimum legal depth is 1.5mm but the more tread you have the better the grip and the safer you'll be.
Christchurch company Eneform has revealed plans to convert old tyres into fuel. Up to 1.5 million tyres a year could be turned into diesel by a Christchurch company.