Warming up Car... How long?
#1
Warming up Car... How long?
Just bought a 1999 996 C2 and the owner told me that I should wait until the car reaches the second line on the temp guage before driving off. (It rests on first when cold) How long do you all wait before taking off... This morning I was sitting there thinking, its been 6 minutes, and I am still waiting..... What do you guys think.
#2
Nordschleife Master
ABSOLTELY NOT!!!!! You should NEVER let these cars warm up idle in the garage, etc. And never REV the engine while in idle trying to wiat for it to warm in an attempt to warm it up more quickly. Easiest way to damage your engine.
The manual clearly states to start the car and drive away immediately and keep the revs low till at operating temperature. This process brings the engine to temp quicker and safer.
The manual clearly states to start the car and drive away immediately and keep the revs low till at operating temperature. This process brings the engine to temp quicker and safer.
#4
start and floor it!!! out of the garage thru the neigborhood...hitting a couple of school kids and old ladies.....see the smoke in your rearview mirrors.....pull over and pull out all your hair!!
Never (like Dell wrote) NEVER let the car idle....start and drive off....like the manual says don't go over 4000 rpm untill the needle hit 180....I think never go over 2500 (like rbennet wrote) before the needle is past 180......you will enjoy your P a lot longer.
Never (like Dell wrote) NEVER let the car idle....start and drive off....like the manual says don't go over 4000 rpm untill the needle hit 180....I think never go over 2500 (like rbennet wrote) before the needle is past 180......you will enjoy your P a lot longer.
#5
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What they ^^ said! Keep it under 4,000 RPM until car gets to normal operating temp, which in my car is when the needle is between the "8" and the "0" at the 180° mark.
#6
Chandler!
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First I always warm the car until the the car comes to idle - about 700RPM, which takes about 2 or 3 min. tops. Then I keep the RPM's under 4K until the car comes up to temp, about 180 degrees. You can actually feel the tranny warm up and shifting is much easier.
After that I consider the car ready to go.
After that I consider the car ready to go.
#7
The reason they want you to drive the car right away is not clear...some say it is because they want the transmission to warm up as the engine warms up...some say it is an anti-pollution thing (those German environmentalists)...can't see what is actually wrong with idleing to warm some before you drive (anyone explain the science here). I think riad has it right.
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#8
Nordschleife Master
The short answer is that the engine will warm up faster that way and thus be "protected" sooner than later" as long as you keep the RPM's down during this warm up period. It's all about engine life.
#11
Wow, this is something I've always wondered about, being somewhat automotively challenged (most of my automotive knowledge comes from listening to Car Talk, but try not to hold that against me).
I understand the part about it being OK to drive off almost immediately in above freezing temperatures and would allow a quicker warmup (with a few minutes warmup at idle in sub zero temps).
http://www.cartalk.com/content/colum...anuary/01.html
But I always thought it was not a big deal to let the car idle for longer, say 10-30 minutes in the morning (save for a little extra pollution and miniscule wear and tear). Is there something unique to P-cars wherein an extended idle is not recommended?
http://www.cartalk.com/content/colum.../April/01.html
If idling is indeed bad for the car, I guess corollary question would be at what time interval would the marginal benefit outweigh the cost of having to restart the engine while say, running back into the house, versus just leaving the engine idling. In the pasts I've left the car running in the driveway if I think I will be 10 minutes or less.
I understand the part about it being OK to drive off almost immediately in above freezing temperatures and would allow a quicker warmup (with a few minutes warmup at idle in sub zero temps).
http://www.cartalk.com/content/colum...anuary/01.html
But I always thought it was not a big deal to let the car idle for longer, say 10-30 minutes in the morning (save for a little extra pollution and miniscule wear and tear). Is there something unique to P-cars wherein an extended idle is not recommended?
http://www.cartalk.com/content/colum.../April/01.html
If idling is indeed bad for the car, I guess corollary question would be at what time interval would the marginal benefit outweigh the cost of having to restart the engine while say, running back into the house, versus just leaving the engine idling. In the pasts I've left the car running in the driveway if I think I will be 10 minutes or less.
#12
Chandler!
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The car is designed to idle higher when it's cold for a reason, whether it's 80 or 8 degrees out I always let the car come to idle (about 700) before moving.
Starting your car and driving it normally while the engine is cold just does not seem like a good idea.
Starting your car and driving it normally while the engine is cold just does not seem like a good idea.
#14
Originally Posted by dant
Just bought a 1999 996 C2 and the owner told me that I should wait until the car reaches the second line on the temp guage before driving off. (It rests on first when cold) How long do you all wait before taking off... This morning I was sitting there thinking, its been 6 minutes, and I am still waiting..... What do you guys think.
#15
http://www.cartalk.com/content/colum.../April/01.html
If idling is indeed bad for the car, I guess corollary question would be at what time interval would the marginal benefit outweigh the cost of having to restart the engine while say, running back into the house, versus just leaving the engine idling. In the pasts I've left the car running in the driveway if I think I will be 10 minutes or less.[/QUOTE]
so yoou are those people pamper their p-cars and complain all the troubles your baby gives you like faulty plug, rough idling, bluh, bluh, bluh.
Morden "high performance" engines are design to operat at high temperature to acheive efficiency and HP with the advan of ECU and metallegy.
there is only one way to baby these cars is to drive ithem like you stole them the way the germans intended them for.
If idling is indeed bad for the car, I guess corollary question would be at what time interval would the marginal benefit outweigh the cost of having to restart the engine while say, running back into the house, versus just leaving the engine idling. In the pasts I've left the car running in the driveway if I think I will be 10 minutes or less.[/QUOTE]
so yoou are those people pamper their p-cars and complain all the troubles your baby gives you like faulty plug, rough idling, bluh, bluh, bluh.
Morden "high performance" engines are design to operat at high temperature to acheive efficiency and HP with the advan of ECU and metallegy.
there is only one way to baby these cars is to drive ithem like you stole them the way the germans intended them for.