10W20 for 5W20 if car engine is knocking?

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  • 10W20 for 5W20 if car engine is knocking?


Answer #1 | 19/12 2013 23:46
If its knocking you better just get it towed to a shop to avoid more damage.
Answer #2 | 20/12 2013 00:13
Sometimes changing the oil viscosity is appropriate. Especially if you know what you r hearing or doing. ( that's only if you really know ) maybe your friend is a mechanic. If not, call the tow truck and have it towed to ur real mechanic to diagnose the problem.
Answer #3 | 19/12 2013 23:53
If it knocks all the time, it needs repaired. If it knocks when you accelerate, you need a higher octane fuel. Use only the oil recommended by the maker and listed on the oil filler cap.
Answer #4 | 20/12 2013 00:28
Knocking or tapping? Lifter make a more tap like knock. Big ends make a heavier knock. We can try another oil but normally when a lifter starts to rap it needs replacing. Check it is not big end as far more serious. A mechanic is best here.
Answer #5 | 20/12 2013 03:16
Knocking and tapping are two different cases. I would think you are saying tapping, which means that the valve lifters are making much tapping noise. Using a thicker oil may help, but a 10W-20 oil is too thin for the job. Try selecting 5W-40 or 10W-40 grade oil. Knocking is a term used when there is misfiring due to incorrect fuel-air mixture.
Answer #6 | 20/12 2013 04:00
5W20 and 10W20 have the same viscosity at operating temperature. It is only thicker when cold.
Answer #7 | 20/12 2013 03:33
If it is knocking, have it checked by a mechanic. The engine is about to break on you soon. Putting a different oil will not do anything to it.

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