Engine Warm Up
- Thread starter Bogus
- Start date
mowcowbell
New member
Everyone 'warms' their engine. The main difference is whether 1) you let the car sit stationary while it warms up - getting 0 mpg, or 2) if you drive the car to warm it up - getting higher than 0 mpg. I chose #2 as that allows me to move towards my destination while at the same time achieving higher than 0 mpg.
Darin
Darin
SonicBoy24
New member
Golden.
Bogus
Senior Member
I don't remember if this was stated earlier in this thread but my (very mechanically inclined) step dad told me this last night.
When you first start your cold engine, certain areas get warm faster than others. If you start your engine and immediately start driving you are obviously raising the RPMs and load on the engine, making those hot spots get hot even faster than other internal parts of your engine. Which makes those hot parts expand faster than the cold spots, causing accelerated wear because now they don't quite fit the way they should.
Versus if you sit and let your engine idle it warms more evenly decreasing this uneven warming and expanding of internal parts. And decreases uneven wear, increasing the longevity of the life of your motor.
Will you experience any problems in the short term by taking off with a cold engine? Probably not. But I'm willing bet in a few years you will be visiting the dealer long before me (granted no other issues occur).
This sounds very plausible to me.
When you first start your cold engine, certain areas get warm faster than others. If you start your engine and immediately start driving you are obviously raising the RPMs and load on the engine, making those hot spots get hot even faster than other internal parts of your engine. Which makes those hot parts expand faster than the cold spots, causing accelerated wear because now they don't quite fit the way they should.
Versus if you sit and let your engine idle it warms more evenly decreasing this uneven warming and expanding of internal parts. And decreases uneven wear, increasing the longevity of the life of your motor.
Will you experience any problems in the short term by taking off with a cold engine? Probably not. But I'm willing bet in a few years you will be visiting the dealer long before me (granted no other issues occur).
This sounds very plausible to me.
RS Turbo
New member
These Engine are tested after cold soaking at 30 degreed below Zero and immediatly run at Wide Open Throttle for 40 min at a time on the Dyno cold chamber rooms... The correct oil in the engine and its tight tolerances are the key!
Extreme testing is done due to them needing to give you a 100,000 mile Warranty.
If it blows up its covered!
Extreme testing is done due to them needing to give you a 100,000 mile Warranty.
If it blows up its covered!
mowcowbell
New member
Not to me. Check this out:
Idling Your Car
or:
http://wiki.answers.com/Q/Is_it_necessary_to_warm_up_your_car_in_the_morning
Still skeptical?:
http://media.ford.com/images/10031/Eco_Driving_Fusion.pdf
Straight from an automobile manufacturer.
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$ub$onic
The Sticker Guy
OK number one that's a dyno engine, the whole reason that engine exists is to have the crap ran out of it, because a engine still runs does not mean its healthy and with tighter tolerances I would not want to run wot cold, yes good oil is the key to any engine life. Because they do it on a dyno does not mean you have to
And its not the first 100k I'm worryed about its the last 100k that it matters do you need to idle for 10 min , no, the 30sec cold idle is good enough to get the oil flowing right
Of course this is all my opinion
And its not the first 100k I'm worryed about its the last 100k that it matters do you need to idle for 10 min , no, the 30sec cold idle is good enough to get the oil flowing right
Of course this is all my opinion
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RS Turbo
New member
The only way to see how good a componants quality is to take to the extreme and break it. Thats the bottom line. If you choose to warm your motor up thats up to you. I never keep a new car past 60k miles and keep mine in prestine condition. I have people asking me usually all the time when I am ready to sell my vehicle and I usually always sell it to somone I know. They want them because they are trouble free and are maitained well.
Of coarse I have worked on vehicles for a living for the past 25 years and only work on the newest model year vehicles under warranty. But Hey! What do I know... LOL
Of coarse I have worked on vehicles for a living for the past 25 years and only work on the newest model year vehicles under warranty. But Hey! What do I know... LOL
Bogus
Senior Member
Those are interesting links..
Graham
New member
I believe its best to wait for high idle to drop down and stabilize then u can drive gently until there's heat in the motor, if u live where u have an aggressive freeway on ramp right outside your driveway... then you should let your car warm up stationary longer than someone who can basically idle down the hill for miles. Never beat a cold engine you want to last. Sure manufacturers do it to see if they can survive, but... its a test mule that won't go into a customers car. Its common sence like stated earlier.
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Sent from my DROID RAZR HD using Tapatalk 2
SonicBoy24
New member
I'm planning on getting rid of this car within the next 2-3 years anyway.
Plus, has what has been stated, these engines are rigorously tested. Not wasting a gallon of gas letting it warm up everyday way not be the healthiest thing, but its not going to kill the engine.
$ub$onic
The Sticker Guy
For someone like you I can understand, your not keeping it so what's the point, the fact is that metal expands at different rates depending on size and doing a wot launch cold could slowly wear away some point in the engine. yes they will still run but your wear is accelerated
Eric Smit
Enforcer
you idle drops around 100.
GeneralZod
New member
Between newer oils and engine engineering, idle is not entirely a must. Most of it depends on weather. I roll out of my driveway, which is at about the Kick down. Under 30 I will remote start and wait for the idle kick down.