Steel Soldiers now has a few new forums, read more about it at: New Munitions Forums!
Microsoft MSN, Live, Hotmail, Outlook email users may not be receiving emails. We are working to resolve this issue. Please add support@steelsoldiers.com to your trusted contacts.
If I ran it at all, it would be under no load (drive shafts disconnected) and only for a minute or two at idle rpm for some splash. I would not want anything to get hot nor a bearing surface gall.
Why do you think it necessary to flush it out? Not really a sludge-producing component.