Take this for what you paid for it. This is from my hot Roding of diesel motors, make sure your EGT probe if installed in the exhaust manifold or exhaust pipe is not bottomed out and touching the hot metal of the manifold or pipe. This would skew the reading on your gauge. You would also be read the temp of the metal. I do know that 1800 deg in my diesel for prolonged time would melt my pistons. Don't ask how I know this.
Eric Pitts Terre Haute IN KR2S http://home.att.net/~e.j.pitts/ <http://home.att.net/~e.j.pitts/>
