TOY: RE: Synthetic Oil and Oil Treatments (Slick 50/Prolong)

["Payne, Mike K." <MPayne1@xxxxxxxxxxxx>]

I am a firm believer in Synthetic Oils... and my first step was the freezer
test.

Put a couple cups of oil (one synthetic and one regular) in your freezer (or
outside if it is 30 or below) and wait overnight.  The next day, pour them
out.  

If that does not convince you... then this article might help.  
http://www.uglyknob.com/Misc/synth_oil.txt

There is some information going around about putting synthetic in older
motors... and its effects on seals and creating oil leaks.  My understanding
is that the older oils had additives that swelled the seals in a vehicle and
adding synthetic would eventually let these seals shrink, causing leaks.  I
do not know the validity of these claims, but it makes sense in an "old
wives take" sort of way.  To the best of my knowledge this should not effect
anything in the 80s or newer even if it were true.

HTH

 -----Original Message-----
From: 	Pat Fogle [mailto:pfogle@bhcmhmr.org] 

I just had my motor rebuilt, and I was trying to decide what oil to go with.
I have heard good things, in general, about synthetic oils, but I want not
sure if they were OK for an 84 22R or not.  I have heard that they are
higher grade and increase engine life.  I have also heard that if you start
with synthetic, you have to stay with synthetic.  Anybody know any other
pros/cons?  What oil do you recommend?

Also, are oil treatments like Slick 50 and Prolong worth using?  What are
the pros / cons to them?

Thanks for any info!

Pat