Most brake pads are semi-metallic, composed of metal shavings that are bonded with resin. If you look at the brakes of most vehicles, unless they are meant to carry heavy goods or head around a race track, you're generally going to find that they are semi-metallic. If you picked up a car for everyday driving, they're probably what your brakes use, too.
However, that doesn't mean you necessarily have to replace worn out semi-metallic brake pads with new semi-metallic brake pads.
The answer to the question "Is it safe to drive with a cracked radiator?" is no. Do not drive you car if the radiator has cracked. If you do, the engine will overheat and it will damage other parts of the car. Worse yet, the car may end up on fire. A car is made up of complex systems but the radiator is one of the simple ones. And hence if it is cracked or if it has any other major problems, you can easily tell by looking at some signs.
When buying a used commercial truck, you may need to take more time to inspect all the details of the vehicle than you would for a personal use car, as a commercial truck will typically be used to haul very heavy loads and may then suffer more wear and tear than any lightweight family sedan. Note a few important details you don't want to overlook, so you ensure you make the right choice for your used commercial truck.
With fuel prices on the rise, most motorists would like to make the most of their vehicle's fuel mileage. However, there are a number of issues that could be decreasing his mileage for you. Which not only means that you will be spending more on fuel but that your vehicle is not at its optimum performance. Thus, it is essential to determine what it causing your poor fuel economy and have it remedied as soon as possible.