I can't really take credit for the screwdriver trick, that was actually told to me by Patrick Dykes. I had to replace my dipstick tube when the original got bent. I called them at Patrick's to see about a replacement. The rep I talked to wasn't sure, so they had Patrick talk to me. He told me hoe to make a new one and how to put it in. He was very helpfull with any problems I had with my engine.