Does Using Thicker Oil Increase Horsepower in Your Engine?

Discover how oil viscosity impacts engine performance and why thicker oil may not boost horsepower.

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Using thicker oil does not inherently increase horsepower. Instead, it can cause increased engine resistance and reduce efficiency. Use the oil viscosity recommended by your vehicle's manufacturer to ensure optimal performance and longevity of your engine.

FAQs & Answers

  1. What is the best oil viscosity for my engine? Always refer to your vehicle manufacturer’s recommendations for optimal oil viscosity tailored to your engine.
  2. Can thicker oil harm my engine? Yes, using thicker oil can lead to increased engine resistance and potentially reduce efficiency.
  3. How does oil viscosity affect fuel efficiency? Higher viscosity oils can create more drag in the engine, possibly leading to reduced fuel efficiency.