Dave H M wrote:
I believe most inportaint is to drive at reasonable loads and rpms til the temps come up... by simply idling, that will take much longer, and dilute oil with raw fuel.
I am not a fan of letting diesels setting around rattling. However, i thought that wet stacking, washing cylinders down, oil dilution was a thing of the past.
I think that it is.
We have a older 1983 Diesel tractor on the farm. We usually let that one run if we are only going to be out of it for a few minutes. The only way to get it to start when cool is to give it a shot of starting fluid. The only way to get it to start when cold is to plug it in.
The newer tractors will start up but, we plug them in when the temp gets below freezing because it's better for them. They take a couple of minutes at idle before the CVT transmissions will work.
Now, on my brothers 2016 F-350 he never plugs it in and it starts right up and drives away at any temp. Once you get below 20 degrees F outside you do have to wait for the glow plugs though. I think he plugs it in when it gets below 0.