Which is the most important part of any vehicle? The engine. With other words, we can say that the engine is the heart of any vehicle. The longer the engine lasts, the longer your truck will last. But unfortunately, engine breakdown is possible with any engine and you cannot do anything about it. What you can do is make sure you have the right engine to power your truck as long as it lasts. With proper and regular maintenance, you can help in keeping the engine in good condition. Before purchasing an engine brand, there are few important things to consider.