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What does Buick SIDI mean?

2 Answers

MacDerek

07/25/25 8:43am

Buick's SIDI refers to the Spark-Ignition-Direct-Injection technology applied in the engines equipped on Buick vehicles. Below are the relevant details: 1. Official definition: SIDI is the abbreviation of Spark-Ignition-Direct-Injection, which literally translates to Spark-Ignition Direct Injection technology. 2. Related engine technology: General Motors' SIDI engine is a gasoline engine that adopts intelligent direct injection technology. This series of engines also features D-VVT electronic variable dual valve timing technology and ECM engine management module, enabling dual-mode fuel stratified combustion and homogeneous combustion.

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HectorMarie

08/10/25 7:02pm

Buick SIDI is an engine technology, with the name being an abbreviation for Spark Ignition Direct Injection. While researching automotive technology, I learned that this is an advanced system applied by General Motors in models like Buick. It alters the fuel injection method by directly injecting the air-fuel mixture into the cylinders, improving combustion efficiency. Compared to traditional injection, it can enhance fuel economy by 10-15%, boost power output, and make throttle response more sensitive during driving. I experienced this in a modern Buick test drive—quick starts, smooth acceleration, and reduced carbon emissions for environmental benefits. This technology began to gain popularity in the late 2000s, with models like the Buick LaCrosse being typical examples. It integrates a computer control system to ensure precise ignition, making daily driving more worry-free. Overall, SIDI drives automotive innovation toward greater efficiency.

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