I DID SOMETHING VERY STUPID YESTERDAY.....I MESSED UPMY ENGINE

["D. Dardalis" <dardal@xxxxxxxxxxxxxxx>]

At 11:38 AM 1/11/2002 -0500, you wrote:
>I PUT SOMETHING IN MY ENGINE...YESTERDAY NIGHT THAT IS MAKING MY ENGINE 
>NOCK...LIKE MY VALVES.....I HAD A TUNE UP SUMMER OF 2000...HAVE NEVER HAD 
>ANY ENGINE RELATED PROBLEMS...NOW MY VALVES R NOCKIN

What type of additive did you use?  What type of oil are you currently 
using (make and vicosity)?  Is the engine an "old timer"? (ie it has not 
been rebuilt for a long time and may have a lot of sludge in it?).  It is 
possible that this "miracle additive" loosened some old crud and blocked an 
oil passage, or even the oil pump pick up screen.  Do you have an idea of 
the oil pressure, before and after?  If your stock gauge gives unreliable 
readings, try to install a mechanical gage to see where the pressure is 
standing.  It should be between 45 and 60 psi at 2000 rpm when hot 
(depending on the regulator spring).

I would stay away from all these miracle oil additives out there.  Most of 
them do more harm than good, and those that do no harm, rarely do any 
good.  The oil companies formulate an additive package that is tested and 
works well as is, as well as meets certain SAE standards.  If you add some 
unknown additive, you don't know how it will react with the rest.  If you 
really want a "miracle oil", just use a good synthetic.
D^2