I feel that you should start the vehicle give it a minute or two then proceed off at a steady pace. Tony: Warming-up the vehicle is to allow oil to flow around the engine.
The oil moves pretty quickly but when the oil is cold it is too thick to lubricate correctly. The other reason for warm-up is to allow all of the moving parts to get up to their correct operating temperatures and expand and contract to the correct clearances.
An example of this is if you have a performance engine with forged pistons these may get a rattling noise when they are cold and get a noise called piston slap. It goes away once they are warm and up to temperature as they expand to the correct clearance. It is more about not putting the engine under excessive loads and high RPM while it is cold. RVD: Does a longer than recommended warm-up time help or hurt the longevity of the engine? Or are they just putting hours on the engine and being fuel unnecessarily?
All this does is put hours on the engine and burn fuel unnecessarily. This routine can cause the intake manifolds to soot up more than normal and the DPFs to choke up faster causing more burns and excessive fuel usage.
Modern diesels are all computer-controlled; some limit the amount of fuel delivery until the vehicle is warm enough and reduce the performance. Taking off at a steady pace and taking it easy for the first few minutes of the trip will not hurt the engine.
Taking off and giving a cold engine high RPMs and high loads unnecessarily will cause excessive wear and damage. Refiners have resolved this problem by making winter blends that work better in colder weather.
We also have additives that can be put in the fuel during extreme low temperatures. 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.
Myth: Diesel engine idling does not waste much fuel. Fact: Fuel is one of the largest operating expenses in our industry. There is no sound barrier wall between us. It is about 75 feet from my home. They have been letting trucks idle for over 2 hours. I want to know is it legally ok. Can a diesel truck idle for over 2 hours and do harm to me and my family? You would need to contact your local authorities. As far as diesel exhaust being healthy at such a distance, I doubt you are in danger of any harm.
But we are also neither doctors, nor environmental scientists. Not enough lubrication in the Pistons walls. Yes, we did discuss the former. Thanks for pointing out the latter. Great tip! Nice write-up Jim, many thanks for sharing. My point, leave the beast running during your setup and nobody will notice, keep a smile on your face and saying hi to folks will remove most RBF. I like those mileage numbers. You may think my numbers seem fairly good, but then I will tell that those were imperial gallons, not US gallons, which are smaller.
Thanks for taking the time to help others and for the preventative tips. Cummins Diesel Exhaust Manifold Leak. Old Diesel Turbo and Exhaust Manifold. Damaged Manifold and Turbocharger. New Diesel Exhaust Manifold. New Turbo Improves Diesel Mileage.
Roger that, an ETG is definitely on our wish list. Great article. Nice pieces of information that would have been easy to ignore. Thank you. Thanks for reading and commenting Dave! Happy Travels…. Leave a Reply Click here to cancel reply.
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