What's the best stuff to use to get rusty nuts and bolts off? PlusGas seems highly recommended although when I tried it once or twice it didn't solve the problem I had in front of me. I've found WD40 works well but some people say it's not really designed to do this. In America they seem to rave over PB Blaster and Kroil but I don't think you can really get them over here, or if you see them they are silly money as they include postage from the USA. I've even seen it suggested on the web that a 50/50 mix of automatic transmission fluid and acetone works better than anything you can buy in a can! For me the best results have come from using good old fashioned bog standard penetrating oil containing graphite and leaving it overnight. Anyone found any miracle cures to this age old problem?