I'm thinking of trying some lucas heavy duty oil stabilizer to try and dampen engine noise.

Has anyone tried this product? Is it safe to use on my a4 b5?

 

I wouldn't recommend anything like that. Just use good 0w40/5w40 oil.

 

I tried the lucas oil stabilizaer for one day and it increased vibration promoted rough idling and increased noise from the engine bay.

I immediately ran down to the auto store and bought some good oil and quickly did an oil flush/change. Once i started the car and drove a bit I immediately notice the difference.

DONT USE ANY LUCAS OIL ADDITIVES IN YOUR AUDI!

 

Didn't I tell you not to use it?