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Topic Review (Newest First)
01-27-2013 02:36 AM
AfternoonShift ^^ I can totally understand it spreading..being there is already a fracture in the glass. I'm not sure who would start a car and not heat the cabin of the car...would seem pretty pointless. :)
01-26-2013 11:38 PM
Originally Posted by AfternoonShift View Post
I've never heard of a windscreen cracking because of that lol you can't be serious.

If its really cold below 20f, I'll wait a few mins then go.
Yes, I am dead serious. Have you never heard of thermal shock before? As others stated its especially true if the windshield already has a crack or chip in the surface. Any quick temperature change can cause the glass to crack.
01-26-2013 10:02 PM
garate55 I'm gonna have to read up on the remote start settings. I ran mine the other day when I got downstairs got my coffee and went out, front defroster was on, I thought that was the default and only setting.. But if there are settings I will look into this.

I shattered a windshield on an old Dodge Neon when I went out to my car after work on a super hot day, The place where I worked had a car rinse because the parking lot was dusty, anyway I went straight under it without cooling off the car with my A/C and BOOM a loud snap and I then had about 5 or 6 full cracks across the whole windshield without even having any chips or anything. BE CAREFUL! Even glass moves in temperature changes thusly will break when a quick temp change it introduced...
01-26-2013 09:04 PM
spiderpig So it worked great. Car was covered in about 2-3 inches of snow with ice below it. Started the car and let her run for about 5-6 minutes. The front and rear defrosters took take of the ice and made the clean up a lot easier. I used a brush I use to clear the snow and it took me about 4 minutes total to clean my car. Was great.

Cleaning off my wife's minivan on the other hand is still a pain.
01-26-2013 09:01 PM
Originally Posted by AfternoonShift View Post
I've never heard of a windscreen cracking because of that lol you can't be serious.

If its really cold below 20f, I'll wait a few mins then go.
If there is a chip or a crack already on the glass the sudden heating or cooling will cause it to propagate and spread across the windshield fairly easily. Also pouring warm water over ice cold glass can cause it to break sometimes also. Its about the sudden stress induced across the glass.
01-26-2013 06:21 PM
Originally Posted by IngotFoFo View Post
I see no problem with It, some mornings you have no choice when the windshield is frosted over. I would be careful running just the engine then turning on the heat because instant heat from the defroster will cause a cold windshield to crack. If you turn the defroster on from the get go, the temperature change is gradual and that risk is eliminated
I've never heard of a windscreen cracking because of that lol you can't be serious.

If its really cold below 20f, I'll wait a few mins then go.
01-26-2013 10:36 AM
hotleadsingerguy It used to be that idling a car for longer than a few minutes was bad for the engine. That time has passed...and there is no longer any harm in it. You could idle a car for an entire tank of gas and the engine would be in no worse shape for it. For the very cold days, let it idle for 10 minutes before you leave. It won't hurt anything and hopefully then it'll be a bit warmer in there for you when you get in.

As for the "bad for the environment" thing...a car idling for 5-10 minutes is better than a few people smoking cigarettes for the same time frame. The car lets fewer carcinogens into the air.
01-26-2013 08:02 AM
spiderpig Well the car Remote Starter settings have three settings: auto contrls (starts AC or heat), front defrost, rear defrost. I have all these set to auto right now. My thinking was let the car start up and let her run for about 5-10 minutes and then go clear her off.
01-25-2013 11:35 PM
hand-filer Or the environment.

Sent from my iPhone using FF Mobile
01-25-2013 09:42 PM
Burns098356GX A few minutes to warm up isn't going to hurt it. Its been between -10 and -20 for a week so I let the engine run for 5 minutes before setting off too work. As long as its not excessive. I had an uncle that would warm up his truck for 20 minutes even in the summer. That much idle isn't good for your motor.

Sent from my Nexus 7 using FF Mobile
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