New LS, what rpms to operate at
- Thread starter dwalk19
- Start date
- Views: 13710
strantor
Platinum Member
Let's say a guy or gal was hard headed and chose to ignore sound advice to keep RPMs up all the time, preferring to instead run about 1,500 RPM most of the time for a compromise between fuel useage, noise, and available power. What would be the consequence? I expect it would regen more often but why is that a bad thing? Does it decrease the life of the machine? Does the DPF only have a certain number of regens it can handle before it goes titsup? Or is the problem that it would never heat up enough to go into regen at all, thereby clogging up the works and causing premature failure? Or Is it something else entirely?
3Lfarms
Platinum Member
Look at it this way, yes it’s better to run it at 2000 RPMs, but you won’t find a warning in your owner’s manual that says you must.
It will probably just regen more often. Will it shorten the life of the system? I don’t think anyone really knows.
It will probably just regen more often. Will it shorten the life of the system? I don’t think anyone really knows.
Drewmon
Bronze Member
The way I was told about engine RPM / Workload of the tractor / Regen intervals is as follows.
The RPM of the engine is determined by the needed workload of the engine/tractor. If your engine is going to be strained or loaded hard at lower RPM's then the engine's exhaust will be dirtier than if the engine is running higher RPM's at the same workload. So by running your engine at lower RPM's and pushing it, it causes the regen time to be sooner than running the same workload it at higher RPM's. If your not really pushing the tractor's engine and just doing minimal work with high RPM's your again going to have sooner regen because your burning more fuel (because of higher RPM). The ideal use of the engine which results in less frequent regen times would be to use the RPM's the job requires, I use my tractor for a bunch of different things, the RPM's vary depending on what I'm doing. So far so good.
The RPM of the engine is determined by the needed workload of the engine/tractor. If your engine is going to be strained or loaded hard at lower RPM's then the engine's exhaust will be dirtier than if the engine is running higher RPM's at the same workload. So by running your engine at lower RPM's and pushing it, it causes the regen time to be sooner than running the same workload it at higher RPM's. If your not really pushing the tractor's engine and just doing minimal work with high RPM's your again going to have sooner regen because your burning more fuel (because of higher RPM). The ideal use of the engine which results in less frequent regen times would be to use the RPM's the job requires, I use my tractor for a bunch of different things, the RPM's vary depending on what I'm doing. So far so good.
Supraman0614
Silver Member
I see the logic, but I'm not really sure I agree with that 100%. My experience is that when I first got mine and ran it around at lower RPMs, "unloaded" (driving into/out of the woods, moving things around with the pallet forks, etc) the regens occurred more often and seemed more 'harsh'. After I started running it at 2k+ for all activities (when not sitting there idling for a few minutes), the regens were much closer to the 50 hour interval that was advertised, and they were barely noticeable. I haven't noticed an appreciable increase in fuel consumption.
