 And then the second question I have is if I do replace the spark plugs, do you guys recommend anti-seize or no anti-seize? On an O2, I'm not going to put any anti-seize on them, but I want to take them out. I'd take the plugs out and look at them. And it used to be that if the plugs came out, you just change them. But at, let's say, $10 or so, $10, $12 a plug, there's really no reason to change it if the plug is not worn. And you'll see the wear on it. If that electrode on there has got a