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<DIV><FONT face=Arial size=2>Hi Bill,</FONT></DIV>
<DIV><FONT face=Arial size=2> You will
get a wide range of opinions on this. The main difference will be whether or not
to use any, and if not, whether or not to run the engine dry. </FONT></DIV>
<DIV><FONT face=Arial size=2> I
never use after run, however, performance specialties sell an after run that
will not harm the internals of the engine. DO NOT USE A PETROLEUM BASED PRODUCT
OF ANY KIND.</FONT></DIV>
<DIV><FONT face=Arial
size=2> I run Cool Power
heli fuel and run the engine dry after flying. I never have replaced bearings
because of need. I have replaced the bearings just to "make me feel better" but
they seemed fine. When I rebuild a YS, the inside is full of oil, even though I
run it dry after flying. When running it dry, only the part of the fuel that
burn will run out, leaving a good bit of oil still in the engine.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial
size=2> Hope this helps
get the thread started, good luck, Terry</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=billt38122@comcast.net href="mailto:billt38122@comcast.net">Bill
Thompson</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, November 17, 2003 4:06
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> After run Oil</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>What is the best after run oil should I use in my
YS engines ?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Bill Thompson</FONT></DIV>
<DIV><FONT face=Arial size=2>AMA 7703</FONT></DIV></BLOCKQUOTE></BODY></HTML>