Idle-down really depends on the conditions in which you have been driving. It may also wash off the film of oil on the cylinders and may cause liner damage.
It is true that diesel engines use barely any fuel while idling far less than a gasoline engine.
Is it bad to let a diesel idle. It is true that diesel engines use barely any fuel while idling far less than a gasoline engine. How long can you leave a diesel truck running. Long periods of idling more than 10 minutes can damage an engine because combustion chamber temperatures drop so.
On low idle a lot of diesel motors will not produce enough heat to a fully expand the metals to seal mating surfaces and b to fully burn the fuel. This causes what is called wet stacking where the unburnt fuel exits through the exhaust. It may also wash off the film of oil on the cylinders and may cause liner damage.
How bad is it to idle a diesel engine hours at a time. At a lownormal idle pretty bad especially with older mechanically controlled engines. At idle there is more fuel being injected into the cylinders than is being burned.
Letting an engine idle actually does more damage to the engine than starting and stopping. Running an engine at idle causes twice the wear on internal parts com- pared to driving at highway speeds. Idling will increase maintenance cost and shorten the life of the engine.
Diesel engine idling does not waste much fuel. Ultimately it is bad to let your diesel engine idle but perhaps not for the reasons youd think. One of the biggest misconceptions regarding diesel engines is that because they burn such little fuel compared to gasoline models its okay to let them idle.
This belief is only partly true. Is it bad to let a Duramax idle. It is true that diesel engines use barely any fuel while idling far less than a gasoline engine.
While it isnt particularly bad for it there just isnt much reason to do it. Most diesels start perfectly fine when cold warm up in a reasonable time and dont have gelling issues. Should You Idle a Diesel Vehicle.
Idling is also bad for modern diesel-powered vehicles. On start-up dont idle for more than 30 seconds or 1 minute if its really cold. Older diesels needed time to get the oil around the engine to reduce friction this is now done automatically and much more quickly your manufacturers handbook will provide further.
The issue with idling is soot. The engine gets slightly more fuel than necessary to idle and the unburned or not completely burned fuel is soot. Think blowing snow or a cool acetylene flame before you open the oxygen side.
Soot builds up on everything on the other side of the exhaust valve. It should be fine i let my mine idle for air for my black labs. U bought a commercial truck right.
I see service trucks do it all the time with the 67thats y theres an idle engine hrs. Time keeper cause you need to change the oil a little more often thats all. Owners manual should have the intervalsfor long idle trucks.
Now in the winter time it is harder on the engine to let it idle since the engine will cool down below that temp. It will actually cool back down to 140 if its cold enough. Then you have to put it in high idle to allow the engine to build more heat.
As was said before a high idle is a diesels happy place if you have to let it sit for a while. Also good for gasoline burners as it will keep the spark plugs from fouling as easily. Easier to achieve with a tractor than a truck without some fancy electronics because you can just bump up the tractors throttle lever.
In any case letting your diesel idle for anything more than a short duration is a bad idea because while the engine will use little fuel what fuel it does burn will not combust completely because the operating temperature is too low. Do you let your diesel engine idle when you stop. Why should you idle your diesel truck.
To maintain top performance and prevent costly repairs to your diesel engine you should always let your truck idle for a few minutes after any long haul. I know Im speaking from personal experience. Heavy carbon build up creates soot in the oil also which impairs oils lubricating properties especially to the upper valve train.
Any diesel ive owned I never let them idle for more than a few minutes. Other than that you are just wasting fuel and wasting time. Any diesel owners know if idling is bad for the engine.
A buddy of mine has been hauling around my Bobcat and weve been doing some light snow removal and while were clearing snow he just lets his truck sit and idle saying its better than to shut it off and then turn it back plus it keeps the cab warm for when were going again. But those seals will eventually go bad anyway and if you idle you may end up replacing the seals andor the injector pump at 300000 or 400000 instead of 500000 or 600000 miles. There are added problems with idling the newer Sprinters with the DPF as it will need cleaning or replacing sooner than otherwise with idling.
Idling in stop and go traffic or waiting for the better half to exit the store will not harm our trucks but you will regenerate more frequently. I would suggest to keep excessive idling to a minimum. But let your truck idle down for a few seconds at the end of your trip so your turbo cools down to help prevent coking of the bearing.
In any case letting your diesel idle for anything more than a short duration is a bad idea because while the engine will use little fuel what fuel it does burn will not combust completely because the operating temperature is too low. I was reading in the archive post that some people says its bad to let your diesel idle to long for warm up. I usually wait on my 05 till the tranny temp starts to move then take it easy untill both tranny and engine are up to temp.
2005 F-250 Lariat 4x4 CrewCab SRW Short bed Torque shift 60L Darkstone. Idle-down really depends on the conditions in which you have been driving. If you have been working it hard right up until you pull up to shut it off five minutes is definitely worthwhile.
If you idle through the town then get to the caravan park and back your van into its spot it would be cool enough to just shut down as you have basically done the job of the turbo. I always heard it was a bad thing anyway. However I was also told that you could let diesel powered vehicles idle as long as you want.
Indeed I hear that truckers sometimes let the Big Rigs idle all night long. I went to a drive-in last weekend with my wife and daughter. I let my gas powered SUV idle for about and hour and a half at one point.
I think a 1100 rpm high idle is the normal for these trucks. I dont let mine ilde more then 10 minutes without cleaning er out. I heard cylinder wash down is likely because of the low combustion temperatures at idle.
I would let a motor run forever on a 1100 rpm high idle without a second thought.