Experiencing engine noise. Advice needed.

[Rufus]

Hi everyone<BR>I can hear some funny noise in the engine - like slightly tapping valves and something else (difficult to describe). I was told that it might be the hydrolic valve lifters. Has anyone else had this problem, and how can I fix it? I've had a suggestion to put in some oil additive called Promar and run it on some special Mazda oil. Can I use some decent aftermarket (semi-)synthetic oil?<P>Thanx in advance [img]shrug.gif"%20border="0[/img]

[pelado]

Yes, it is probably HLA (Hydraulic Lash Adjuster) noise. Low oil level will definitely cause this.<P>Lots of info posted previously about this if you're willing to search.