According to many reports I have read the best rust "buster" for nuts/bolts etc is Kroil ... unfortunately .. not available here in Ontario (as far as I know)...the second best rust "buster" is reported to be "PB Blaster" ... previously not selling in Ontario ... but now I found PB Blaster is available from Canadian Tire.... I just purchased some and plan to try this mythical stuff...has anyone had any experience with it???