What does Audi TSFI mean?

2 Answers
VanWyatt
07/23/25 11:10pm
Audi TSFI stands for Turbocharged Stratified Fuel Injection engine. TSFI Turbocharged Stratified Fuel Injection engine: Simply put, it is the combination of an engine and a turbocharger. The 'T' represents turbocharging technology, while the 'FSI' refers to the Fuel Stratified Injection engine. Stratified Fuel Injection Technology: Stratified Fuel Injection Technology is a type of engine lean-burn technology. This technology allows for a lower gasoline content in the engine's air-fuel mixture, improving the engine's fuel efficiency while also reducing the engine's displacement through this technology.
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BarrettLee
08/10/25 7:09pm
As an enthusiast passionate about studying automotive technology, I find Audi's TFSI to be an incredibly cool piece of engineering, standing for Turbo Fuel Stratified Injection. Simply put, it's a combined system of turbocharging and fuel stratified injection technology used in engines to enhance air intake efficiency and ensure more precise fuel injection into the cylinders for more complete combustion. The benefits are numerous: when driving, acceleration is powerful and responsive, with no sluggishness during gear shifts, daily commutes become more fuel-efficient, and reduced emissions make it more environmentally friendly. The working principle is slightly more complex, involving compressing air through turbocharging and injecting a stratified mixture via fuel injectors to minimize waste. After driving an Audi A4 series equipped with TFSI, I clearly noticed the engine's extended lifespan. During maintenance, remember to regularly check the fuel injection system and clean carbon deposits. Don't skimp on fuel costs by using low-quality gasoline, as it can easily clog components. In summary, this technology makes cars more powerful and practical. Audi began widely promoting it in the mid-2000s, and it has now become a brand hallmark.
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