RW> Pink is a South Texas special. Because of the very high temps around
RW> here,
RW> all summer long, it supposedly cools better than orange or green.
RW> 
RW> AFAIK, Yellow is a Ford factory antifreeze...

Around here, I have only seen the Yellow and Green.  I guess there also a
few people that still get the red Dexcool.

RW> Tell him I have a factory sealed gallon of Dexcool I'll sell him, cheap.

I'm sure he woudn't be interested.  He told me when he bought the car, the
first thing he did was drain out the Dexcool and put the yellow stuff in. 
I have seen Dexcool get all gummy in some systems, too.

RW> Crankcases are pressurized with compressed air/fuel mixture blowing by
RW> worn or sloppy piston rings. This is inevitable in internal combustion
RW> engines. This is why a PCV 'positive crankcase (vent) valve' was
RW> invented.
RW> Before PCV came into vogue, there was the 'road draft tube' venting
RW> blowby
RW> and oil to the underside of you car, the road and atmosphere. Ford's
RW> flathead V8s and Y-block V8s were famous - For Oiling Road Dirt - in the
RW> day of road draft tubes. All other cars did this too, but none of them
RW> lended a name to it better than FORD.

What about value covers?  My old Malibu used to leak some oil there onto
the exhaust manifold.  Not much, but it was enough to make a mess.

RW> Again, a blowby problem will force oil out of the rear seal.

I have heard that if a PCV value gets really clogged it can cause that
compression to get too high and blow some gaskets.

- Mark

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