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03-09-2000, 08:41 PM | #1 |
Scooby Newbie
Member#: 994
Join Date: Feb 2000
Location: Burnaby, B.C. Canada
Vehicle:'99 Impreza RS/RBP '88 RX-7 (resting) |
Warm up the car?
I had a little discussion with my friend the other day. As I was warming up the car before I drove it, my friend questioned me why I had to warm it before I drove it. I couldn't really answer him, but told him that I always do it, until the needle touches the bottom line, or, when I am in a rush, at least half way up. My friend said that cars these days don't need to be warmed up. My reply was that why then does the engine stay at 1500 rpm until it is warmed? I didn't agree with him. What do you guys think?
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03-09-2000, 11:29 PM | #2 |
Scooby Guru
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Join Date: Dec 1999
Chapter/Region:
VIC
Location: Vancouver, BC, Canada
Vehicle:2003 Lexus IS300 Graphite Gray Pearl |
Don't wanna sound like a jerk..but your friend is right. There is no need to warm up the car by letting it idle. The car warms up a lot faster and safer when you drive it right away (at slow rpms mind you). Something about the oil circulating throughout the motor and stuff...I'm sure someone can explain the mechanics behind it better.
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03-09-2000, 11:50 PM | #3 |
Scooby Guru
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well...I always warm up my car before I drive it...the reason why cars nowaday doesn't need warm up before they drive it is only because of the design of the engine...it has a "cold start" and when it's cold it will automatically has higher idle rather than u have to use "choke" for old design...I think most likely it can also be the diff between Carburetor and Fuel Injection engines???
Persoanlly I do warm up my car whenever I drive...at least until the idle down to 1k...if you want to ask me why...I think the reason is when the engine is cold...they can't burn the fuel completely and then the carbon deposit in there will stick on the valve and for long term the engine will run worse and worse (if I explain it correctly in English)...a good warm up habit is more important than cool down afterwards...but it's still a good habit to cool down before u shut off the engine espeically after u drive it hard...the chance for oil leak will be lower... |
03-10-2000, 12:04 AM | #4 |
Scooby Newbie
Member#: 994
Join Date: Feb 2000
Location: Burnaby, B.C. Canada
Vehicle:'99 Impreza RS/RBP '88 RX-7 (resting) |
Thanks so much for your opinos!!!
Your guys are great! I hope I don't sound silly by asking these kind of questions. |
03-12-2000, 10:53 AM | #5 |
Scooby Newbie
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Join Date: Mar 2000
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Location: Vancouver, BC, Canada
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I would have to agree with Keiho.
To elaborate a bit more, it's better to warm up your car while driving so that everything warms up equally. ie: you don't want your engine running at temp. while your transmission, differential, etc. are still frozen. This could cause undo stress should you decide to gun it for whatever reason... Usually 30 seconds to a minute to get the juices flowing before you start driving is a good idea. I typically have my car running while I'm cleaning all the ice/snow off of it, and that is sufficient. Hope this clears things up a bit... |
03-12-2000, 04:17 PM | #6 |
Scooby Specialist
Member#: 390
Join Date: Oct 1999
Chapter/Region:
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Location: Ottawa, Ontario, Canada
Vehicle:2020 Forester Sport Dark Grey |
Hey guys,
Even better... Switch all your engine fluids (engine, tranny, rear diff) to synthetic... and don't worry. I've noticed a big difference. Robin National Capital Subaru Club www.ottawasubaru.com |
03-12-2000, 08:04 PM | #7 |
Scooby Guru
Member#: 769
Join Date: Jan 2000
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Vehicle:04 SoBaLo EsTea-ai ZERO/SPORTS/99 GM6/05 BP6 |
well...for me even I have my engine warmed up I won't drive hard once it's out onto the road...as some of u guys said the tranny and the diff isn't ready to do that...
I agree Synthetic engine oil, and gear oil (or ATF for AT Tranny) helps a lot! but do u guys agree that it can depends more on your "luck" of the car you got? LOL [This message has been edited by 5 Zigen (edited March 12, 2000).] |
03-12-2000, 08:07 PM | #8 |
Scooby Specialist
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Join Date: Jul 1999
Location: The meeting place
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You really don't have to anymore. Someone above mentioned that it is better to drive your car out slowly with low revs ( below 3000). This way the fluid will get pumped up and around theentire engine much faster than sitting at idle. I usually let it idle for about 30 seconds and go. In fact idling longer will be bad for the car. This is the new concept now.
Let ur car idle till it's warmed up and compare to driving slowly out. You will notice that the latter step will wamr the car up faster. |
03-13-2000, 12:51 AM | #9 |
Scooby Newbie
Member#: 994
Join Date: Feb 2000
Location: Burnaby, B.C. Canada
Vehicle:'99 Impreza RS/RBP '88 RX-7 (resting) |
Thanks again, guys.
Since I will have to tune up the car soon (12,000km), I will dump some synthetic oil in my beloved machine. Any particular brand you can recommand me? Any opinion will be greatly appreciated. |
03-13-2000, 06:33 AM | #10 |
Scooby Specialist
Member#: 102
Join Date: Jul 1999
Location: The meeting place
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You're welcome. I use Mobil 1 for engine and Redline for both tranny and rear diff. Lotta mulah. But it's worth it for my baby.
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03-13-2000, 02:46 PM | #11 |
Scooby Newbie
Member#: 489
Join Date: Nov 1999
Location: Toronto, ON, Canada
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I was told by my dad (a harley mech) that if u rev to some extent with a cold engine, u could damamge your pistons (he showed me one, and its got like scar marks in four vertical streaks... dunno how to put it).. anyways... something to do with that ur pistons are warm (before the block is?) and expands...
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03-13-2000, 07:53 PM | #12 |
Scooby Guru
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Vehicle:04 SoBaLo EsTea-ai ZERO/SPORTS/99 GM6/05 BP6 |
Impy: I agree w/ what you have said...
yet I think it's a no end discussion coz no one can prove what's the best for the engine...it's just all about persoanlly thinking and what ppl have told you about... I have asked my instructors in BCIT and even the mechanics I have known so far...no one can tell the answer but they just all know it will be better to warm up your engine before u drive it...but who knows if it's 1 min or 10 min? some have told me u don't have to warm up and using synthetic oil is a waste of money, but on the other hand, some told me if u love your car (and your engine) you have to do this and that....who is right and who is wrong?! no one can prove...hehe... so I hope we all will be good luck to our engines and don't have to deal w/ any problem serious...no matter how u keep it and use it...as long as u think there is no harm for the engine...hehe... |
03-14-2000, 08:56 AM | #13 |
Scooby Specialist
Member#: 102
Join Date: Jul 1999
Location: The meeting place
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Bah! Suabru engines are strong not like some other chintzy brands. ppl use the boxer 4 for light airplane duties! Do what ever you want at your own descretion. It's your car. hehehehh
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