By electronically controlling the injection of fuel into each cylinder, injection timing can vary depending upon load, temp, rpm, etc. But the best is yet to come. The circuitry that is controlling the injection is designed so that fuel is delivered at a different pressure/rate during each injection event. This is what vastly increases output and efficiency and reduces the telltale 'diesel' knock'.

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Michael LaFleur

'05 E320 CDI - 86,000 miles
'86 300SDL - 360,000 miles
'85 300SD - 150,000 miles (sold)
'89 190D - 120,000 miles (sold)
'85 300SD - 317,000 miles (sold)
'98 ML320 - 270,000 miles (sold)
'75 300D - 170,000 miles (sold)
'83 Harley Davidson FLTC (Broken again) :-(
'61 Plymouth Valiant - 60k mikes
2004 Papillon (Oliver)
2005 Tzitzu (Griffon)
2009 Welsh Corgi (Buba)