> On December 31, 2017 at 7:25 PM Curley McLain via Mercedes > <mercedes@okiebenz.com> wrote: > > > Trucks have APUs. My guess is either they plug in the the truck and > that also powers the fuel heater(s) as well as the block heater; or the > heaters run off battery power and the APU starts up every so often to > recharge the batteries. Dunno, I've never been that close to them. The > other thing is most of the trucks under 3 yrs old are kept on the road > nearly all the time. If it is a single driver, then the APU runs while > the driver sleeps, and it or the batteries keep the fuel warm.
A lot of trucks don't have APUs, but they're becoming more prevalent as certain states put draconian bans on idling trucks. A lot of truckers think the engine should only be shut down for 34 hour rest breaks, but with EPA 2010 engines those guys seem to be experiencing more than their share of DPF and DEF troubles. Mitch. _______________________________________ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
