If anyone ever tells you to use that blue devil head gasket sealer the first thing you should do is punch them in the throat. Then if you decide to proceed hear me now and believe me later. Take your thermostat out first. Even if you use the pour and go which tells you that taking the stat out is not required. Bullshit! I now have not only the thermostat that is jacked but the water pump is ruinedand now on my garage floor as well. Tried to save some money and then the fuckening happened and it was strong. Not only am I out a water pump and a thermostat, may as well change theserpentine and ac belt while I'm in there but my $70 worth of sealer is nowrunning down the street into a fucking storm drain. I dont know how but this is tigas fault.