GM and Gearing

mkirsch wrote:

ShinerBock wrote:
New systems that will likely come out in the next 10 years will be dual DEF systems which will hopefully eliminate the need for the EGR altogether or at least reduce how often the engine utilizes it dramatically.

That doesn't help what's out there now, which is unreliable beyond what's reasonable. Farmers and truckers avoid the new engines because they leave them sitting on the side of the road too often to risk.

I would have to disagree on the farmers and truckers thing since I have worked in the medium/heavy duty transportation industry for over 2 decades and live in a rural farming community with a small 300 acre family farm/ranch a few towns over. You will see mostly 2010 and up trucks around here and most are diesels. Most heavy duty trucks are 2010 and up as well according to Polk registration data. So I am not sure if this assessment you have is based on emotions are data, but the data I am looking at and have access to says otherwise.

Also, the data from our 500+ truck fleet will disagree with on how unreliable the new diesels are versus the gassers in our fleet. NOx or O2 sensor and other emissions issues is common problems with both. The amount of total engine down time associated with both is about the same as well. However, with the gassers it is more often at shorter periods while the diesel is less often at longer periods.