???

im trying to figure out which is best for a honda motor. i know different manufacturers say different things, so how's about some opinions from you guys? add a choice if you have another preference...

-drew

*edit* and obviously, under any of these choices of conditions, the first few miles would be low-rpm driving only...

 

I pretty much let oil pressure get to max. Give it maybe 10-30 seconds and then head out... but also, i live in Miami where a cold day is only 40-50 degrees max!

 

live in texas. every once in a while, it gets to about 40 degrees. let it warm up for about 5 minutes or so and then leave. i don't try to hit vtec though until i've driven for a little while.

 

i live in canada -- i let my car warm up a good 10 mins out in the cold (-10 or under) and/or the rpm drops to about 1,000.

 

Usually during the Jersey winters I let her warm up about 1.5 - 2.0 minutes. When she is in the garage, I start it up and go.

EVIL

 

I usually let the car idle for as long as it takes me to settle into my car; tilt the steering wheel, adjust heating controls, find a good song on the radio, etc.

Any longer is just a waste of gas and time IMO. As long as the engine has sufficient oil pressure I'll drive it easily until normal operating temps are reached.

 

i normally only let it warm up for 2-3 minutes, then start driving but only up to about 2K rpm and nice and easy. only a little bit of throttle. once i get out of town it's normally warmed up to get on the highway and take it above 3K rpm.
i hate letting it warm up for long periods of time unless it's really cold outside, then maybe a few minutes longer than normal. driving it nice and easy at low rpm is what i like to do til it's almost at full temp.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by sweet &raquo;</TD></TR><TR><TD CLASS="quote">i normally only let it warm up for 2-3 minutes, then start driving but only up to about 2K rpm and nice and easy. only a little bit of throttle. once i get out of town it's normally warmed up to get on the highway and take it above 3K rpm.
i hate letting it warm up for long periods of time unless it's really cold outside, then maybe a few minutes longer than normal. driving it nice and easy at low rpm is what i like to do til it's almost at full temp.</TD></TR></TABLE>

Thats what I do. No vtec until its at normal operating temp also.

 

What are the effects on the motor if you just hop in your car, start it up, and start racing down the road.....when it is below freezing outside?

I always hear that it is bad, but I was wondering what is happening inside the motor at cold temperatures and how it changes when temperature rises?

 

from what ive heard, all warming up does is waste gas. as long as you drive it normally (under say 3500 RPM )when its cold theres not gonna be a problem.

 

I always warm it for about 5 min's... I know you guys think this is retarted to go by water temp and not oil temp, but I wait till the water temp guage is 1/4 of the way up... Then i keep it under 3k rpm till the car is at full opperating temp... Even in the summer...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redman223 &raquo;</TD></TR><TR><TD CLASS="quote">What are the effects on the motor if you just hop in your car, start it up, and start racing down the road.....when it is below freezing outside?

I always hear that it is bad, but I was wondering what is happening inside the motor at cold temperatures and how it changes when temperature rises?</TD></TR></TABLE>

well the main thing that i think of is the thickness of the oil when it's cold out.
at start up, especially when cold out, the oil is thicker since it's colder as well.
so it can't flow as well in between those very small clearance places like journals and bearings etc. so hitting high rpm when the motor is ice cold, or just cold in general, is something that i always try to avoid to keep the internals in the best condition possible and have the motor last for as long as possible.

of course there may be some other reasons that could be mentioned, or elaborated on.

 

hey, thanks for all the replies....

i usually let my car warm up for a minute or so till the revs fall if its REALLY cold outside or it has been sitting outside overnight in &lt;40F weather or something, and then i drive it really easy till it reaches full operating temp. otherwise, a good 20-30sec warm-up on warmer days or if the car is in the garage. also driving easy till it reaches full temp i agree is a must in any condition.

so, i guess this is okay...that's basically what my dad said to do (hes an ASE mechanic for GM), and the general consensus here seems to be similar. and ive been doing it that way for years without a problem. i guess, the WORST thing you could do is go rev it high before it reaches full operating temp.

 

i normally just get in, turn the key, floor it, put it in gear, and side step the clutch rite away.

 

hahaha

 

I asked many people he same question before...one guy who used to be a master mechanic for toyota says that with newer fuel injection cars you need the O2 sensor to come to full operating temps...which can be anywhere from 20seconds to 3 minutes. Once the O2 sensor can read the correct air-fuel mixture, you can drive normally, not aggressive, but normal. The only situation you want to avoid is heavy load under the first 5 minutes of driving...so basically try to avoid steep hills when the car is not yet warm.

Me, I warm her up for a complete song, then drive...so anywhere from 3-5 minutes.

 

I live in Flagstaff AZ and it was 6 degrees this morning! I always let my car warm up for at least 5 minutes! Your car is always happy after that. Yah, it wastes gas but so do a lot of other things.

 

no warm up needed, drive under light load until it reach the proper operating temp.

according to my text book

but what do i know about cold, I live in southern california.

 

Per the Honda owners manual, there is no reason to let the car warm up more then about 10 seconds. No matter what temperature it is outside. I would say they know best about what the engine needs. no?

 

The longer you sit idling, the more condensation builds up in the oil. Also, when the engine is cold, the fuel is burnt at a lower temperature, which leads to more carbon build up.

I don't think warming up the car is necessary, just drive it slowly until it's warmed.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MaxBoost &raquo;</TD></TR><TR><TD CLASS="quote">I pretty much let oil pressure get to max. Give it maybe 10-30 seconds and then head out... but also, i live in Miami where a cold day is only 40-50 degrees max! </TD></TR></TABLE>


me too, but not in Miami, Sarasota, home of the old people

 

I live in wisconsin and don't drive my honda in the winter.

But my winter beater (92 crown vic) as soon as it starts its in gear and out the driveway. And what is cool is the big cloud of condensation from the exaust in winter when you floor it within the first 2 min. of running time.

 

I have some damn chip that makes it run rich as hell.

Its like -10 here in Canada, and if i dont let it warm up atlest half way it starts bogging and than the tack jumps from 300-1100rpm and it shakes like a *****. But once its warm it takes a trip to the redline no problem.

Hopfully when im finished converting to obd1 my maps will be a bit more suitable.

-Eric

 

i usually let it warm up for about 5-8 min by then it to fully warmed up and i just go ...

 

When i had my ls i would just start it up and since i live on this super long road which is a mile long like perfectly straigt i would just let it rip hahahaha i'm sure it wasnt too good for the car. Right now i have a fully built gsr motor which i am much nicer too. i let it warm up for a while. You know i have never hear anyone mention the oil warm up thing on the gsr motor. Does anyone use it. ITs like a power cord that connects to the block which you run a extension cord to and it warms up your oil? i mean does anyone every use that? or have people lost that power connector?