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Am I the only one that does this?

ALeeL

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Most of the engines wear will be from the first 10-15 minutes after every cold start because the oil is too thick to travel and properly coat the whole engine. When I worked at Cummins, they had tests showing as much as 80% of wear over an engine's lifetime, came from this crucial period of time.

Because of this, I like to keep my rpms as low as possible until the engine oil is at least 175F, however, I am not going to let it sit and idle for 15 minutes every time I start it from a cold start. I find that the stock trans tuning holds 2nd and 3rd gear way to long for a diesel, getting the rpms well past 2,000 even with normal acceleration which makes me cringe on cold oil.

To keep this from happening, I will manually shift as soon as the trans will let me, which is generally slightly above 1,500 rpm, to keep rpms as low as possible. After the oil gets past 175F, then I put it in auto.

Am I the only one that does this?
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jc1003

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I don't do that, but I ordered an engine block heater for mine (2021 JLURD). I use it religiously in the colder temps. This pic shows the outside temp as 16F. The coolant temp is 69F. The oil temp was 44F.
Jeep Wrangler JL Am I the only one that does this? 1729895036652-sg
 

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I don't do that, exactly, but I do keep my foot off the gas pedal as much as possible for the first few minutes. It is never truly cold here in the mornings, but I'm of the mind that the entire engine is a system that was designed to run at a particular operating temperature. Consequently, until I get to the freeway I try to keep it on the sidewalk.
 

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jromanmd

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Agree With Smoky. I let it run for about 30 seconds to get the RPMs around 1k. Once that hits, I drive slowly out of the neighborhood and once warmed up, let it loose!
 

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I have places to go. I turn it on and drive. Fast. Everywhere. Stay out of my way.
 

ssls6

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Most of the engines wear will be from the first 10-15 minutes after every cold start because the oil is too thick to travel and properly coat the whole engine. When I worked at Cummins, they had tests showing as much as 80% of wear over an engine's lifetime, came from this crucial period of time.

Because of this, I like to keep my rpms as low as possible until the engine oil is at least 175F, however, I am not going to let it sit and idle for 15 minutes every time I start it from a cold start. I find that the stock trans tuning holds 2nd and 3rd gear way to long for a diesel, getting the rpms well past 2,000 even with normal acceleration which makes me cringe on cold oil.

To keep this from happening, I will manually shift as soon as the trans will let me, which is generally slightly above 1,500 rpm, to keep rpms as low as possible. After the oil gets past 175F, then I put it in auto.

Am I the only one that does this?
I don't do what you do but I do have my own weird habits. For the first start of the day, I do a 5 second flood start before I do a real start.
 

KevinM60

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I have places to go. I turn it on and drive. Fast. Everywhere. Stay out of my way.
10-4 @Mocopo
At least we don't have to worry about you getting in our way and slowing us down.

I'm on my second engine. The first shaved the cams around 15k so now I let mine get down to the 600 idle speed before taking off and give it time to warm up some before driving it harder. It's at about 2,400 miles right now.
 

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Have you all checked the cold flow rate of the Pennzoil Platinum 0W20 oil? The oil flow great. Just know that unless you are in extreme cold like 40 below zero, almost every decent oil flow great in the 0W20 range.
 

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Instead of the traditional block heater, has anyone tried a mat style that stick onto the pan? Could do both (engine and tranmission)? If so any recommendations?
The cold months are coming 🤔
 

zouch

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i usually do a Remote Start as i'm walking towards it (i like to be familiar with how it sounds in case anything changes), and get it rolling within a minute or so. by then it's settled into its normal initial idle.

i drive it easy until the Trans Temp gets to about 100ºF, after that it can get the boot.
 

JoBuck

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Most of the engines wear will be from the first 10-15 minutes after every cold start because the oil is too thick to travel and properly coat the whole engine. When I worked at Cummins, they had tests showing as much as 80% of wear over an engine's lifetime, came from this crucial period of time.

Because of this, I like to keep my rpms as low as possible until the engine oil is at least 175F, however, I am not going to let it sit and idle for 15 minutes every time I start it from a cold start. I find that the stock trans tuning holds 2nd and 3rd gear way to long for a diesel, getting the rpms well past 2,000 even with normal acceleration which makes me cringe on cold oil.

To keep this from happening, I will manually shift as soon as the trans will let me, which is generally slightly above 1,500 rpm, to keep rpms as low as possible. After the oil gets past 175F, then I put it in auto.

Am I the only one that does this?
I think you probably are although that is good info.
I also have the Eco Diesel.
 

Parker

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I start the engine and let it idle while I walk up the driveway, open the gate, walk back to the garage, back out to the street, close and lock the gate, then I take off. I guess it idles a couple minutes. Never checked the temp at that point but now I will.
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