Warming up the car before pushing it.

[Nuked]

I use the LC indicator. It will come on at ECT 170F. I have confirmed this via NGauge. CHT is normally pretty similar to ECT on mine for the most part when warming up. Oil Temp is inferred off of the ECT and a variety of other factors the PCM algorithm uses.

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[Spike-S550]

Definitely a good idea to allow your tyres to warm up for the extra grip !

 

[Biggus Dickus]

I long warm-up idling was never a good idea.

Why and what support do you have for that contention?

 

[bnightstar]

I do the same but I've let my cars idle in the garage for about 10 minutes before leaving (going back to my first new car - a 1990 Mustang GT Convertible) - overkill and unnecessary by some estimates - but I'm old school.

In the owner's manual there is a line that state not to leave the car idle long after startup.

 

[EFI]

Why and what support do you have for that contention?

The most wear on an engine occurs when it's started up and while running when not at operating temperature. Idling takes a much longer time to get the engine up to operating temps, especially oil, thus the engine spends more time running while out of its operating range thus wears out more.

Now this is a very tiny amount, but doing it everytime you start the engine it adds up over time.

 

[Bluelightning]

I start mine up, pull out of my garage and don't worry about it.

 

[Idaho2018GTPremium]

I can't believe this is a thing that needs to be asked. The car has a temperature gauge. When it is up to normal operating temperature, get on it. It's that easy. And those that wait for your trans temp. to get up to 150 F - you're just wasting time. If I did that I would rarely be able to get on it because these transmissions operate at low temperatures. And those that idle 10 minutes in the garage, like someone else said - unnecessary and a complete waste of time and fuel. Get out of "old school" way of thinking - these cars are anything but old school. In case you haven't noticed - 460+ hp from 5.0 liters, 7,500 rpm redline, low emissions, capable of 30 mpg on the hwy., and A10, is anything but old school.

I start mine, let it stir and listen to that delicious cold start for about 5 seconds, then put it in reverse and back out of the garage. Just take it easy the first few minutes. These cars warm up pretty fast.

 

[BrettT]

My $0.10 for what it's worth. Start the car, back out of driveway, take it easy until CHT stabilizes; approx. 90C (195F), then I'm good to go....

 

[Biggus Dickus]

In the owner's manual there is a line that state not to leave the car idle long after startup.

Do you know where in the manual?

 

[frank s]

(Long-idling warm-up was never a good idea)

Why and what support do you have for that contention?

In earlier times in cold engine/idle conditions there was a great volume of unburned fuel that could run down the cylinder walls and encourage scoring and wear, as well as diluting the oil in the crankcase. I'm sure modern fuel management has improved these functions, but I can't get over the image of washed cylinder walls and thin crankase oil.

I start the engine, drive out of the garage, push the garage-close button, put on my dark glasses, and idle around the block (1/4 mile) before driving gently until the car's aura has grown toasty.

 

[frank s]

Do you know where in the manual?

Looks like page 203 in the 2018 3rd edition.

 

[David Schmidt]

Seems to be coming more from a place of saving gas than engine wear:

There are also some things you may want to avoid doing because they reduce your fuel economy:

• Avoid sudden or hard accelerations.
  
  
• Avoid revving the engine before turning off the car.
  
  
• Avoid long idle periods.
  ...

If fuel economy were important to me, I would be rocking an EB...

 

[Biggus Dickus]

Seems to be coming more from a place of saving gas than engine wear:


If fuel economy were important to me, I would be rocking an EB...

That's what I saw as well - But there is the vague recommendation of "Do not warm up your vehicle on cold mornings". Say what?

 

[SSG 5.0]

I can't believe this is a thing that needs to be asked. The car has a temperature gauge. When it is up to normal operating temperature, get on it. It's that easy. And those that wait for your trans temp. to get up to 150 F - you're just wasting time. If I did that I would rarely be able to get on it because these transmissions operate at low temperatures. And those that idle 10 minutes in the garage, like someone else said - unnecessary and a complete waste of time and fuel. Get out of "old school" way of thinking - these cars are anything but old school. In case you haven't noticed - 460+ hp from 5.0 liters, 7,500 rpm redline, low emissions, capable of 30 mpg on the hwy., and A10, is anything but old school.

I start mine, let it stir and listen to that delicious cold start for about 5 seconds, then put it in reverse and back out of the garage. Just take it easy the first few minutes. These cars warm up pretty fast.

You got that right bud. I usually wait for the rpm needle to go down after cold start.

 

[SSG 5.0]

The most wear on an engine occurs when it's started up and while running when not at operating temperature. Idling takes a much longer time to get the engine up to operating temps, especially oil, thus the engine spends more time running while out of its operating range thus wears out more.

Now this is a very tiny amount, but doing it everytime you start the engine it adds up over time.

That’s absolutely correct about the start up of any engine. The most wear is the start up because the moving parts inside the engine doesn’t have the oil. Honestly, 30 to 45 sec are all you need to warm up the engine bec the oil already lube the moving parts inside the engine. Idling for a long time doesn’t and will not put too much pressure on the moving parts because it’s just running normal. A waste of gas for sure though.

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