Quote:
Originally Posted by COcyclist
Thanks Mario, I have been trying to find this out for myself due to problems with a U.S. EGR cooler recall. From what I can find it is better to leave the EGR intact for lowest fuel consumption.
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In most cases with a diesel engine elimination of EGR will increase mileage
http://www.iaeng.org/publication/WCE...p1548-1552.pdf
There are some exceptions to this but it takes just the right amount of EGR coordinated with the right injector timing to best approximate the ideal diesel cycle.