Will there be engine damage if no warm up?
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From: east coast
So what you're asking basically is "the engineers told me to do it one way and the manufacturer put these instructions in a manual to help me but I want to know if I can risk doing it another way?"
risk it. go for it.
j/k, sounds like an odd question to me.
You must be in a hurry when you start the car.
risk it. go for it.
j/k, sounds like an odd question to me.
You must be in a hurry when you start the car.
Last edited by RMichael; Feb 3, 2012 at 08:15 PM.
30 seconds , that is it.
Then again i don't wait at all, Start, slowly back out of garage, drive slow thru neighborhood . Well over 30 seconds has passed before i hit 3k rpms
Then again i don't wait at all, Start, slowly back out of garage, drive slow thru neighborhood . Well over 30 seconds has passed before i hit 3k rpms
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Its risky on a manual car. Even with a neutral bypass if you leave your car in gear one day and remote start it there will be bigger issues.
Im really old school. I used to watch my dad warm up his cars and he always waited till rpm hit 1k and would then drive off. Grantes those were older cars in the mid 1990s, that mentality stuck with me and i do the same. After its completely warmed up it just feels like a pleasure to drive compared to cold starting it and driving off. The gears engage smoother and the engine is smoother. Thats my view on the matter. In the summer the warm up time isnt that long though.
Im really old school. I used to watch my dad warm up his cars and he always waited till rpm hit 1k and would then drive off. Grantes those were older cars in the mid 1990s, that mentality stuck with me and i do the same. After its completely warmed up it just feels like a pleasure to drive compared to cold starting it and driving off. The gears engage smoother and the engine is smoother. Thats my view on the matter. In the summer the warm up time isnt that long though.
I drive drive off in second gear at idle until oil temperature gage moves. Takes about 1000 feet. Then accelerate modestly. Not certain where I picked up this ritual.
Last edited by davidv; Feb 3, 2012 at 10:06 PM.
"Modern" cars actually need no warm up.Start&go.
However,like others,I give it maybe a 30-45 sec in the morning
to get the "fluids" circulating.Also,hold the revs down until the temp
reaches normal.
Early cars(50-60's),especially "foreign" cars sure needed warm ups before
getting underway.
I've used this practice forever.Seems connon sense to me.It is not unusual
for one of my past vehicles to be running well at 300k.
Must be doing something right!
However,like others,I give it maybe a 30-45 sec in the morning
to get the "fluids" circulating.Also,hold the revs down until the temp
reaches normal.
Early cars(50-60's),especially "foreign" cars sure needed warm ups before
getting underway.
I've used this practice forever.Seems connon sense to me.It is not unusual
for one of my past vehicles to be running well at 300k.
Must be doing something right!
the whole point to warming up the trans is for clearances, in a engine the clearances are going to be larger at operating temp then when the engine is cold because everything expands at different rates based on metal composition and thickness(well for bearings, on piston rings they close because when they expand they cant go out so they push together). if you push the engine hard you run the risk of shredding a bearing/spinning a bearing. on a stock engine not a big problem, on a built engine i wouldnt dream of touching it until it has idled enough for operating temp.
Getting all the engine components up to operating temps ensures all clearnces between moving components are right on before loading the motor.
Last car (2000 celica gts) I drove for 10 years, 215k miles and redlining 8200 rpms all day long. Letting the motor warm up totally before driving allowed it to only lose 10 psi of compression in the worst cylinder over the last 180k miles. Guy I sold the car to now has 250 k miles and said she's still running great.
Our cars don't take very long at all anyways so do your engine a favor and it should return the effort with long life.
Its risky on a manual car. Even with a neutral bypass if you leave your car in gear one day and remote start it there will be bigger issues.
Im really old school. I used to watch my dad warm up his cars and he always waited till rpm hit 1k and would then drive off. Grantes those were older cars in the mid 1990s, that mentality stuck with me and i do the same. After its completely warmed up it just feels like a pleasure to drive compared to cold starting it and driving off. The gears engage smoother and the engine is smoother. Thats my view on the matter. In the summer the warm up time isnt that long though.
Im really old school. I used to watch my dad warm up his cars and he always waited till rpm hit 1k and would then drive off. Grantes those were older cars in the mid 1990s, that mentality stuck with me and i do the same. After its completely warmed up it just feels like a pleasure to drive compared to cold starting it and driving off. The gears engage smoother and the engine is smoother. Thats my view on the matter. In the summer the warm up time isnt that long though.
Last edited by zach711f; Feb 4, 2012 at 07:51 AM.
My procedure.
When it's Winter time:
1.) Start car, let idle for two minuted to get the oil circulated around the engine. I still idle the car 2 minutes before I go, just for peace of mind. When it hits summertime here in AZ, I just give it 30 sec and drive moderately.
2.) Keep rpm's below 3k. I shift at 2k for about 2-5 minutes. By that time, the temp should be at around mid-normal operating temp.
3.) Keep driving easy for another 5 minutes after you reach fully operating temperature. At this point, you can go up to 3krpm.
4.) Keep in mind that oil temp takes longer to warm up. Don't be fooled by the coolant temp. If you ever driven a 370z you know what I"m talking about. It takes about 15-20 minutes to get everything up to temp.
5.) As people have been saying, don't BEAT on it right when you start up, take it easy. Think of running at a race, you wouldn't be full sprinting at warm up, right? You slowly stretch and you feel looser and more comfortable at each stage of getting ready for the race.
6.) If you keep those in mind, you'll be fine.
When it's Winter time:
1.) Start car, let idle for two minuted to get the oil circulated around the engine. I still idle the car 2 minutes before I go, just for peace of mind. When it hits summertime here in AZ, I just give it 30 sec and drive moderately.
2.) Keep rpm's below 3k. I shift at 2k for about 2-5 minutes. By that time, the temp should be at around mid-normal operating temp.
3.) Keep driving easy for another 5 minutes after you reach fully operating temperature. At this point, you can go up to 3krpm.
4.) Keep in mind that oil temp takes longer to warm up. Don't be fooled by the coolant temp. If you ever driven a 370z you know what I"m talking about. It takes about 15-20 minutes to get everything up to temp.
5.) As people have been saying, don't BEAT on it right when you start up, take it easy. Think of running at a race, you wouldn't be full sprinting at warm up, right? You slowly stretch and you feel looser and more comfortable at each stage of getting ready for the race.
6.) If you keep those in mind, you'll be fine.
I have a semi-retarded question to ask. We all know engine oil circulates when the car is idling. But what about gear oil in the transmission? I was always under the impression that if you're not engaging the gears, the gear oil stays level in the gear box and doesn't circulate. Or does gear oil start circulating as soon as the car is turned on? Maybe that would explain why when I warm the car up fully, shifting is way smoother than cold starting and driving off (had to do it once - was in a big rush)?
I have a semi-retarded question to ask. We all know engine oil circulates when the car is idling. But what about gear oil in the transmission? I was always under the impression that if you're not engaging the gears, the gear oil stays level in the gear box and doesn't circulate. Or does gear oil start circulating as soon as the car is turned on? Maybe that would explain why when I warm the car up fully, shifting is way smoother than cold starting and driving off (had to do it once - was in a big rush)?
True, on a manual car there isn't much movement in the trans until you are rolling. Either way, heat transfers quickly since everything is aluminum. As the block warms a little the trans case warms a little. And the input shaft is still turning in neutral as long as you are off the clutch, so there is movement/friction in the trans getting things going.