The coolant in the model 8890 is not mineral oil it is a silicone high temp oil. -- This email has been checked for viruses by Avast antivirus software. www.avast.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20231010/50d02a74/attachment.html>