Even if the commercials seen on TV might make you believe that an engine can run forever, that is not really true, any engine wears out eventually. The engine under the bonnet of your car is composed of many moving parts that are projected to work together and harness the internal combustion power under those brutal conditions. When the engine fails, a good idea would be to think about a remanufactured replacement engine. A remanufactured engine can be a way to keep driving your trusty car even after an engine failure. Before making a decision whatever you want a remanufactured engine installed or not you must make sure the rest of the vehicle is in good condition, as well as other systems on the vehicle. If you replace the engine on a car that has a damaged fuel of cooling system then that would be a very time consuming and expensive mistake if not correct. If your vehicle is in good shape, or you have recently made an investment in major components on the car and the engine died, then a remanufactured replacement engine is the option you need to choose. Rebuilt engine is a very relative term; slip-shod methods of rebuilding the engine can not be trusted when it comes to rebuilding the engine. If you want your engine to be properly rebuilt you need to make sure the job is done by professional machinists. Not everybody has the capital to purchases the proper machines and equipment required to correctly remanufacture an engine and the skills that are required are not easily learned. If the engine is correctly rebuilt it might even be better than the original one. The engine removal and replacement is not an easy job and a proper facility and experience are required. If the engine comes with a warranty then you'll need to make sure that proper installation and break-in procedures are followed to validate and stay in compliance with the warranty. Cleaning and checking the reused components is a must. The oiling system of the engine must be primed properly before staring. There are many variables that if not checked and done properly might spell the end of the engine before it even gets a chance to start, such an example is a loss in oil pressure. If you choose to install a remanufactured engine in an otherwise good vehicle, it will provide years of uninterrupted service at a very low cost compared to purchasing a new vehicle.