Heavier oil will not quiet hydraulic lifter noise. ... The noise will usually go away as the motor and oil heat up. If the tapping continues after the vehicle is warm, you may have one, or more, faulty lifters. As any oil gets dirtier, the chance of lifter noise increases; heavier oil just makes the problem worse.
Can thicker oil stop engine knocking?
If the lifters and valves in the area are not properly lubricated, it will lead to that engine knocking sound that's annoying you so much. That's where a thicker oil or an oil additive can help to reduce or eliminate the noise.
How do I make my ticking valve quieter?
How to Quiet Noisy Lifters (Fix the Lifter Tick & Prevent Damage)
- Adjust the Valves.
- Swap Out Damaged Pushrods.
- Flush out the Old Oil.
- Clean the Lifters with Oil Additives.
- Buy New Lifters.
