In general, the engine needs the right amount of clean oil and the right octane rating of gasoline for keeping the injectors clean and lubricating its mechanical components to perform efficiently. If you don't change the oil often, then it will ultimately affect the engine performance. Through regular oil change your car running well in its entire life. The following slides define the signs of contaminated engine oil in Audi A5 that can affect the engine performance.

7. ENGINE FAILURE

10. CONTAMINATED OIL

13. ILLUMINATED
ENGINE OIL LIGHT

16. UNUSUAL ENGINE
NOISES

19. BURNING SMELL

22. CONCLUSION

25. THANK YOU
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