<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>Originally posted by GTIVR62801: And the other not so obvious answer...
with the increased oil pressure, more of it gets into the combustion chamber, can foul the plugs, and from there go to the cat and screw that up too.<HR></BLOCKQUOTE>
Oh how wrong can things go...
My friend had this problem with his car, mainly due to his ineptness with everything automotive.
He was complaining about how his car wouldn't start, and his father thought it was the ignition system. Well, I was in high school, taking auto shop that year, so I told him I would take a look at it.
I look at the plugs and at the coil and everything seems ok. Then I check the oil. IT WAS NEARLY TO THE TOP OF THE DIPSTICK!!! Needless to say, we found the problem.
It involved a complete draining of the oil and replacement, but that wasn't the worst part. The oil had been blown up into the air intake via the PCV valve; so then I had to clean that out and spray all kinds of solvent over the SINGLE fuel injector and it finally fired up.
He was lucky: it was a $400 junker (which later when on to break down again, when they upgraded him to the land yacht they call the Sable). Point of the Story: too much oil can KILL!!!