HA! and the bumper (all props) was correcting it.

Well, after I watched the video on Dgiant's website I though my engine was knocking a bit. Not nearly as bad as the one in the video, but when it's warm I can hear some out of rhythm knocks. So the consensus is to use the redline. I'll give it a shot. Should I record the warm engine at idle before and then again after 200 miles to see if I hear a difference?

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77' 300D, "Cartman" SOLD @ 150K (didn't know what I had)
83' 300SD, "The Superdon" 325k+ @ 28mpg
95 E320 wagon, "Millennium Falcon" 231k+ @ 24 Mpg
95 E300D, "Sherley" 308k @ 33.69 Mpg, currently anticipating a head
99 Suzuki Intruder "Trudy" @ 45 mpg