![]() We spec Mx13s with 391 rears and 18s for super bs. ![]() The engine manufacturers just try to make it happen. Aint no contract agreement, warranty or no more the truck manufacturers and the customers pushing for downspeeding for better fuel economy. To what extent Paccar is adopting the same mindset I don't know, but I expect that they will be right up there with the rest of the manufactures regarding engine technology in the future.Ĭummins wont touch a Paccar for the same reason they wont work on a Detroit. That is for the European market though where speed limits are typically around 50 mph, the demand on engines is somewhat different, and fuel prices are considerably higher. In my opinion they have gone too far in trying to encourage operating under load down to 800 RPM, but there are very smart folks working on this, so perhaps they will make it work. ![]() People tend to remember the bad, especially in something new, and the stigma can take awhile to get past.ĭaf has attempted to reduce engine RPM and raise low end torque to improve efficiency, and perhaps keep cylinder temperatures up in order to help the emission components work effectively. Many of the first Paccar engines had problems (as did all manufacturers trying figure out how to deal with emission requirements). can certainly tell us all more about it but as I understand it, Paccar purchased Daf, primarily for their engine manufacturing experience when all the brands began offering proprietary engines. ![]()
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