Quote:
Originally Posted by FlyByGTI
I think it might have something to do with the way you are supposed to drive a diesel. I believe you are supposed to be driving them at high RPMs from the very beginning of their life, which is going to keep the carbon build up to a minimum is done properly
I may be misinformed on that though
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You got it backwards. Modern pickup diesels like to run anywhere from 1600rpm to 2200rpm. Most red line or have rev limters around 3500rpm.
Thinking about this after I posted it thought it could have something to do with the higher boost keeping the gunk from sticking. Mind you at cruise a diesel only sits around 2-5PSI.