Time for me to chime in here .....personally I don't believe there is any benefit to using this stuff , if there was , the companys making the oil would be putting it in the oil and charging extra for it , these are big companys with big pockets......Pete has backed up his statements with factual correspondence from the manufacturer of the engines... Having worked on automotive engines for the last 30 years , I have seen a shitload of additives that promised to be the second coming of Christ.......Slick 50 , Krex , they were all the rage , and are all gone now.......To refresh everybodys memory , they used to put Teflon and graphite in car engines......They don't do it anymore...Hmmmmm...... If you fly your plane it will last , if you let it sit , it can corrode , I love to break Petes Balls , In fact I get to do it in person.....But hes right on this one.......Give em hell Pete !!!!