Run an engine without coolant for one or two minutes?

[belfert]

The only coolant "filters" I know, aren't really filters, they are additive delivery devices.

Interesting.  I have purchased coolant filters for my Series 60 that are just coolant filters, no additive in them.  I assumed they really do filter.

[Busted Knuckle]

BW & Brian,
The 60 Series engines do have a filter that does just that filter the coolant!
They also have the ones that add the SCA's also!

Some people use the norcool adding filters. FWIW
  BK