tag:blogger.com,1999:blog-5391255626232385293.post8436216207229150494..comments2024-01-25T17:14:18.395+00:00Comments on Auto Industry Newsletter: Mack Trucks pulls 16-litre engineWhaddon Quarterlyhttp://www.blogger.com/profile/15965874319054447170noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-5391255626232385293.post-73698199192778338732017-01-27T16:36:54.472+00:002017-01-27T16:36:54.472+00:00Deleting the 16 litre option from the trucks it se...Deleting the 16 litre option from the trucks it sells in North America, under both Volvo and Mack brand names is surprising in one way but understandable in another. The take-up for the big engine has been small, even though US and Canadian buyers set great store by generous engine capacity, as witnessed by the popularity of Cummins 15 litre ISX - now dubbed simply the X15. <br />Because of the low numbers, the D16 - unlike the mainstream D13 - has never gone into volume production at Volvo's Hagerstown, Maryland, plant, the engine being shipped in virtually complete from the company's main engine plant at Skovde.<br />Clearly the company has satisfied itself that the turbocompounded D13 can match the more conventionally turbocharged D16 in performance (ie power and torque) terms. Whether it can also emulate its bigger stablemate's durability remains to be seen. As to its ability to compete on fuel economy, that will depend on operating conditions. For long-haul work on US Interstate highways, the turbocompounded 13 litre is likely to be a fuel saver vis-à-vis the D16. But in Mack's Granite truck models for example, which are aimed at extra heavy-duty operations, such as logging and on/off-highway quarry operation, where engine load and speed fluctuate a good deal, the fuel efficiency benefits of turbocompounding are more questionable. <br />Alan Buntingnoreply@blogger.com