antifreeze/ forgot to tell

[mjzakowski]

New motor put in 2000 by ARMS Inc.in Anna OH. We brought it in 2002 and
it has never been in winter months.
Greg you said to do the cheapest gasket repair. What's that?
Also I notice that it stayes near normal operating temperatures on the
HWY. On idle the water temp starts to go up.
Their is only 13,700 miles on the rebuilt motor.
Thanks for your input
Joe 1984 1/2 PT 40