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Hybrid sedans utilize a dual powertrain system that combines a gas engine with an electric motor. This configuration allows them to switch seamlessly between power sources, optimizing energy usage for various driving conditions. In urban settings, where stop-and-go traffic is prevalent, the electric motor takes precedence, providing instant torque and reducing fuel consumption. Conversely, during highway driving or when acceleration is required, the gasoline engine steps in to deliver the necessary power. This duality not only enhances fuel efficiency but also extends the operational range of the vehicle, mitigating range anxiety typically associated with electric-only cars.


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Compression testing measures the ability of an engine to compress its air-fuel mixture properly. This compression is crucial for the engine to operate efficiently and effectively. When you pull the starter rope on a small engine, the piston moves down the cylinder, allowing air and fuel to enter the combustion chamber. As the piston moves back up, it compresses this mixture. The higher the compression, the more power the engine can produce.


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