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Why do some cars get a tyre repair kit and others a spare wheel? Weight, cost and EV packaging explained, plus what a kit can and can’t fix in Australia.

Do tyre inflator sealants ruin the tyre or wreck your TPMS? Modern water-based vs older formulas, whether tyres stay repairable, and how to use sealant safely.

How to change a tyre safely on an Australian highway: where to stop, staying clear of traffic, and the step-by-step method to swap to your spare.