Difference Between Petrol and Diesel Fuel Injection Explained

Explore the key differences between petrol and diesel fuel injection systems, how they work, and their performance impacts.

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Petrol fuel injection mixes fuel with air before it reaches the combustion chamber, while diesel fuel injection injects fuel directly into the combustion chamber. Diesel engines rely on compression to ignite the fuel, making them more efficient but typically noisier. Petrol engines usually provide smoother performance but are less fuel-efficient.

FAQs & Answers

  1. What are the main advantages of diesel fuel injection? Diesel fuel injection offers better fuel efficiency and higher torque, making diesel engines more suitable for heavy-duty applications.
  2. How do petrol and diesel engines differ in operation? Petrol engines use spark plugs for ignition, while diesel engines rely on compression to ignite the fuel, leading to differences in efficiency and sound.
  3. Which is more fuel-efficient: petrol or diesel? Diesel engines are typically more fuel-efficient than petrol engines due to their higher compression ratios and energy content in diesel fuel.

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