During a left and right rear side inspection it is important to be sure that dual tires should do what?

• A. Are inflated to maximum pressure
• B. Do not come in contact with each other
• C. Are the same brand
• D. Are visible from the front

Answer: (B)

Dual tires on the rear should have a safe gap between them so they do not contact each other. If inner and outer tires rub, the friction wears the sidewalls, generates heat, and can lead to belt or tread separation and even a blowout, especially under load or during cornering. Keeping a proper distance also helps prevent debris from being pinched between tires and ensures each tire shares the load more evenly. During inspection, look for a visible gap with no rubbing marks or signs of contact, and verify the tires are inflated to the vehicle manufacturer’s recommended pressure (not the maximum on the sidewall) and are the correct size and mounted properly. The tires do not have to be the same brand, and their visibility from the front isn’t a requirement of this check.