Why Are Engines Made of Aluminum?

1 Answers
DelElisa
07/29/25 10:30pm
Engines are made of aluminum for the following reasons: Lightweight: The advantage of an aluminum engine block is its lightweight, which helps improve fuel efficiency. For engines of the same displacement, using an aluminum block can reduce weight by approximately 20 kilograms. Reducing a car's weight by 10% can lower fuel consumption by 6% to 8%. According to recent data, the weight of foreign cars has decreased by 20% to 26% compared to the past. Improves Engine Efficiency: For example, the Ford Focus uses an all-aluminum construction, which not only reduces the vehicle's weight but also enhances the engine's cooling performance, improving efficiency and extending its lifespan. From a fuel-saving perspective, the advantages of aluminum engines in fuel efficiency have garnered significant attention.
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