Do you let your car warm up?
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Why is it bad to let in warm up? I let mine warm up in the morning because it's F'n cold outside and I like a warm drive to work.
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Why is it bad to let in warm up? I let mine warm up in the morning because it's F'n cold outside and I like a warm drive to work.
Word on the street is the engine becomes more prone to carbon buildup.
IMO if you dont have direct injection and you are having carbon buildup, you arent banging it off the limiter enough
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My truck has to warm up for a few minutes, it also has a carburetor with a manual choke. It needs a little time for the exhaust manifold to warm the intake manifold to aid atomization from the 1950s carb design. The nice thing is when started with full choke from cold it idles around 1000 rpm, you can hear it roaring from inside the house when it gets warm enough because the idle rises to around 1500 and the fan clutch is stuck so it sounds like a tornado is in the driveway, this signals go time.
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I dont warm it up for the engine, I warm up the car so the cabin is toasty.
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Letting the car idle especially in the cold is horrible - snap already hit on it with carbon buildup. "Warming up" the engine should involve immediately driving it and keeping the rpms in check. This way all components of the car properly heat up. Another way to think about it is ok, so you let your car idle to warm up (which by the way letting an N54/N55 BMW idle to get the oil gauge up to temp will take like 30 minutes), but let's just say you do let it idle to warm up. At that point, you go to drive and everything else important that's mechanical is still cold as fuck like, let's say your CLUTCH. People who warm up their cars like that and then drive like normal are 100% doing long-term damage to their car, reducing the life expectancy of parts.
High rpms when the engine is cold is indeed a bad idea. Good way to crack a block. I've seen it happen. The internals of an engine are made of metal and alloys, which contract and expand with cold/heat. Also, in a BMW, oil is used as a cooling mechanism which is why so many of them require 7-8 quarts of the stuff. Same concept as what Porsche does. The oil temperature should be at regular levels before putting undue stress on the engine (high rpms) when it cannot cool effectively.
Bottom line is, I immediately start driving when I start my car and do not go above 3k rpm until the oil temp is good.
2011 E92 M3 6MT ZCP - ESS 625 supercharged
2007 Z4MR
2003 E39 M5
2002 E46 M3
2021 X5 40i -
why am i the only one who voted Taylor swift. wtf
2011 E92 M3 6MT ZCP - ESS 625 supercharged
2007 Z4MR
2003 E39 M5
2002 E46 M3
2021 X5 40i -
I warm my car up when its cold. Otherwise, any other time of year, I let my car drop idle (30 sec-1 minute, or however much time it takes me to grab what I've forgotten) and then I'm away.
My auto tranny doesn't like the cold. He/she hesitates till it's good and warm. It could probably use a fluid/filter change.
E91 328xi - F15 X5 40e - Hopes and dreams of eventually having a cool car
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Ok. Well i warm mine up so its warm inside. And right now the 335 is in storage. I do start it about every two weeks and let the oil come up to temp and cycle through the motor. I can't see letting it lie doormant untill spring being good either.
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I warm up cars when it's 40 or below. I'd be interested to see data on oil viscosity, internal engine wear, and oil seal longevity on a freezing cold engine that's "given a second to warm up" V.S. 4-5 minutes at idle.
I've always wondered why car manufacturers didn't build in "high idle" switches like in firetrucks as part of a "cold weather package"....
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I voted: not usually unless icicles are forming on my balls.....
But, I was really torn, because when I do let my car warm up, I listen to T-swift to get amped up for the drive.
Snap, you officially made this one of the hardest voting decisions in my life.
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All the options were HILARIOUS.
My motorcycle has a cold start. Once the cold start is done then I drive it gently for the first 5 minutes before giving her the beans.
The truck. Well diesels don't run well cold. So it idles for 5-10 minutes and I also drive it gently usually takes 15 minutes of driving before I feel comfortable putting the hammer down. Reaching half temp takes being on the freeway for about 15 minutes after it's already gone through the previous mentions.
The BMW. I just give a few minutes and drive it easy until the engine warms up.
Best way to warm up a engine is under light load driving. I really only do the excessive idling in winter. I'm looking to get a remote start for the truck.
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I warm up cars when it's 40 or below. I'd be interested to see data on oil viscosity, internal engine wear, and oil seal longevity on a freezing cold engine that's "given a second to warm up" V.S. 4-5 minutes at idle.
I've always wondered why car manufacturers didn't build in "high idle" switches like in firetrucks as part of a "cold weather package"....
my truck has a high idle option on the dash computer. Not sure when GM started it. But mine is a 2005 and has it. but my friends 2003 doesn't have it.
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Letting the car idle especially in the cold is horrible - snap already hit on it with carbon buildup. "Warming up" the engine should involve immediately driving it and keeping the rpms in check. This way all components of the car properly heat up. Another way to think about it is ok, so you let your car idle to warm up (which by the way letting an N54/N55 BMW idle to get the oil gauge up to temp will take like 30 minutes), but let's just say you do let it idle to warm up. At that point, you go to drive and everything else important that's mechanical is still cold as fuck like, let's say your CLUTCH. People who warm up their cars like that and then drive like normal are 100% doing long-term damage to their car, reducing the life expectancy of parts.
High rpms when the engine is cold is indeed a bad idea. Good way to crack a block. I've seen it happen. The internals of an engine are made of metal and alloys, which contract and expand with cold/heat. Also, in a BMW, oil is used as a cooling mechanism which is why so many of them require 7-8 quarts of the stuff. Same concept as what Porsche does. The oil temperature should be at regular levels before putting undue stress on the engine (high rpms) when it cannot cool effectively.
Bottom line is, I immediately start driving when I start my car and do not go above 3k rpm until the oil temp is good.
If only more people understood this.
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Blah Blah Blah, I add no relevant info
My auto tranny blah blah blah
Fixed
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nice thing with the n52/54/55..er..basically any new bmw is the electric water pump/thermostat . it starts blowing heat very quickly because it keeps the pump off or on very low till the coolant warms up.. and even when its cold the factory tune limits boost to somewhere around 5 psi till oil is 120f
i let mine run for like a minute when its super cold. otherwise i start driving
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