automotive diagnostic toolUsing an automotive diagnostic tool before you head out on a long trip by car is a good idea. People can buy these tools in most auto parts stores, and they will tell you if anything is amiss in your vehicle. These are really useful. None of us likes to break down on the road, and an automotive diagnostic tool will give you a readout of how your car is running. Breaking down on the road can be an expensive proposition-you will have to pay for towing, which is really expensive now with the high cost of fuel, the parts and labor to fix your car, and potential hotel room for however long it takes to get the part and get the car fixed. By using an automotive diagnostic tool before you leave the driveway, you will have some level of comfort as you speed down the highway toward your destination. The tools are not terribly expensive-around $100, which is not a great deal to keep you in your comfort zone. Even brand new cars can break down due to part failure, so plan on buying an automotive diagnostic tool to keep your car running optimally.