positive on the plug. Unfortunately I don't have much clearance under the van. Plus the problem now is the plug is a little rounded so I can't use a socket. I did see this on amazon though (friend recommended I try this)
http://www.amazon.com/Irwin-Industrial-Tools-394001-Bolt-Grip/dp/B0000CCXVZ
Second the motion on those Irwins... Same situation. Some pimple face asshat over torqued the drain plug on the wife's car when they had to drain the oil for the real mechanic to replace the timing chain cover gasket.
Luckily he didn't damage the threads... But I had bought one of those oversized replacement plugs from autozone anyway just in case... Suggest you do the same.
Or get one of these... I have them on all my vehicles now.
http://www.qwikvalve.com/?gclid=COTGr_WI1MQCFUpp7AodrXIAZA
