Re oils, go to this site http://archive.dstc.edu.au/BDU/staff/ron/ select faq from the left index , scrol down select Q5 . this is an excellent explanation of oils , and why castor or motor oils are prefered especially in diesels.
Re MEK v MEKP im not sure but the peroxide is an oxidiser and is proberly the main excelerant in the compound the MEK the carrier and catalist .
Somebody correct me if I'm wrong .
Stewart