[Al6751]

So now that it’s getting colder my truck is starting to high idle when I first start it in the morning. I have always wondered if it would be bad in the long run for the engine. I can’t understand how it’s “safe” for the truck to idle at 1k rpm when the oil hasn’t had a chance to warm up yet?? Any thoughts or am I just being over protective. 😂😂😂

 

[hillbilli]

In the south, i wouldnt worry about it, even if your running dino 15w40 down there. New synthetic oils have a lot better cold flow properties and they stick to the components better. Unless your in subzero weather, your going to have adequate flow and protection almost immediately after starting.

 

[MoparProud]

K. The Engineers at Cummins that know FAR more about these engines and engines in general than ANYONE ON THIS FORUM, specifically designed it to do that. They don't design junk to explode down the line, they build solid stuff that lasts for decades.

Stop worrying. It's doing it's thing, leave it be and worry about something else.