Thinking it would be good to not warm up before oil change.

[Weaver412]

OK, 2018 Panigale V4S. I'm one of those oil freaks, but I have never had bike over heat, seize, get lower hp on a dyno after years etc. So my amputation had me on a little break then the weather came. Bike has been sitting for a month at least. I feel like warming it up is just gonna flush all the particals around the engine again. Why not just drop the oil as it sits. Its been draining to the pan this whole time and The oil pan dont have much of a bottom. Am I missing something? And I'll still let it sit all night. What's your thoughts?

 

[kschachn]

A few previous threads on this popular topic:

Hot or Cold oil change?

I was always told to do an oil change when the oil was hot or warm, I think the logic was that more contaminants were in solution and the oil drained out faster. But now I think on that logic, if the oil needs heat to keep contaminants in solution then I should have changed the oil long ago...

bobistheoilguy.com

Better to change oil hot or cold?

I bet this has been covered before... probably many times - but I couldn't find it, so if you guys have an opinion or can give me some search terms or links that would be great. My Q has been sitting for 4-6 weeks untouched, and is in need of an oil change. Should I start it up and drive it for...

bobistheoilguy.com

How long to warm up the car before an oil change?

I know there's no right answer, but I'm wonder what you guys do. I remember when I'd collect samples to send to Blackstone, their recommendation was to drive at least 20 miles before collecting a sample. I've got a one-way commute over 40 miles, so my preferred time to do an oil change was a...

bobistheoilguy.com

Oil Change : Hot, Cold or Warm, or does it matter?

There are pros and cons to changing your oil when it Hot, or when it's Cold or somewhere in between. Is the any data to show more contaminants are removed from the engine when the oil change is performed when the oil is Hot? or Cold? or Warm? Sometimes my only real option is to change it when...

bobistheoilguy.com

Hot vs cold oil change video, long vs short drain time lapse.

Hopefully this video helps settle the debate between changing oil hot vs cold and how much extra oil you get out when you drain it for 12 hours. I'm sure most BITOGs already knew the answer to this question but I thought it would be nice to see the different temp oils in action, especially with...

bobistheoilguy.com

Engine temp before oil change?

I'm due for an oil change soon. I have a 2019 Ram 5.7L with under 10k miles. Wondering if it is best to change the oil while the engine is still hot (after it's had 5 - 10 mins to drain back into the pan) or after letting it cool off and sit overnight? I have heard several theories on the...

bobistheoilguy.com

Draining oil hot or cold questions?

1. Do you normally drain your oil hot, warm or cold? 2. If oil thins when cold and thickens when hot, why does hot oil drain quicker? * I drain my oil hot.

bobistheoilguy.com

your oil change temperature?

So guy's my seaching skills kinda sucks. vehical has not run in a week, so I'm guessing 90% plus oil is in the pan. Should I heat her up, or change it cold. Info. New to me 2007 Buick Rendezvous 145,000 KM 3.5 Letre engine Penzoil YB and M1 oil filter. no info on maintains from pervious owner...

bobistheoilguy.com

Changing oil when engine is cold.

I'm looking for some informed opinion about the necessity of warming the engine before changing the oil, which I've been doing for the past 30 yrs. I have 3 low mileage vehicles to change every 4 mos. with dino since they are used 90% of the time for short trips. I could probably save about 25%...

bobistheoilguy.com

Any benefit to changing oil when engine is warm???

A lot of OC procedures say to let the engine warm completely up before change the oil, but is that really necessary? Does it matter if you're using syn vs. dino? Most of the time, I either move my car into place at the house or it's already in place for the change, so the engine is pretty much...

bobistheoilguy.com

Hot vs cold oil change observation..

Normally, I'm a hot oil change guy. I change the oil after driving. My most recent oil change I did after the car sat overnight. When removing the oil filter in a hot oil change, a substantial amount of oil runs out (some from the filter, but I think a fair amount from inside the engine). I...

bobistheoilguy.com

Oil change - drain hot, warm, or cold?

Sorry if this has been discussed before....Something my grandpa always told me was to drain your oil when the engine was hot. After thinking about it shouldn't you drain when all of the oil is in the drain pan? It just seems that when the engine has just been turned off it could take hours for...

bobistheoilguy.com

Is it really important to change oil when it is warm?

I've read several threads that talk about changing oil shortly after a car has been driven a while. Why is this? Is there any harm in changing oil when the car has sat for a few hours, or even overnight? It seems to me that if a car were just run it would be too hot under there especially if...

bobistheoilguy.com

warming oil before an oil change.

Anyone else wing the pee out of their car/truck before taking it in for an oil change? His dropped the work truck off for a change and wrung the holy heck out of it on the way there, you know, to warm the oil up:)

bobistheoilguy.com

 

[oil pan 4]

I always get them hot.
Draining cold oil that's been sitting seems to leave all the crud you want to be rid of on the bottom.

 

[Astro14]

Well, if you believe that there are "particals" circulating in the engine, then the thing to do is to warm it up and get them suspended in the oil. So that when you drain the oil, they will be removed because they are in suspension in the oil.

By now, those particles are all in the bottom of the sump, where they will stay when you drain the oil.

So, are there, in fact particles in the engine?

 

[JeffKeryk]

Well, if you believe that there are "particals" circulating in the engine, then the thing to do is to warm it up and get them suspended in the oil. So that when you drain the oil, they will be removed because they are in suspension in the oil.

By now, those particles are all in the bottom of the sump, where they will stay when you drain the oil.

So, are there, in fact particles in the engine?

Curious... Wouldn't the particles be washed out by the oil flowing out the drain? Always wondered.
Maybe some enterprising young scientist can run some experiments?

If I am pulling the plug, I prefer cooler because the service is easier on a cooler engine. Now the MityVac hates cool oil.

 

[Astro14]

Curious... Wouldn't the particles be washed out by the oil flowing out the drain? Always wondered.
Maybe some enterprising young scientist can run some experiments?

If I am pulling the plug, I prefer cooler because the service is easier on a cooler engine. Now the MityVac hates cool oil.

Not necessarily. Depends on the location of the plug. Not everything in the bottom of every pan gets drained.

 

[Torrid]

I don't know that I've intentionally heated up any engine to drain it, but I do recall at least having it cool enough to not burn my hand. I don't think I'd want to wait for molasses to drain out so depending on how cold it is where you are I'd be inclined to let it run for a few minutes for that.

 

[SubieRubyRoo]

A few previous threads on this popular topic:

Hot or Cold oil change?

I was always told to do an oil change when the oil was hot or warm, I think the logic was that more contaminants were in solution and the oil drained out faster. But now I think on that logic, if the oil needs heat to keep contaminants in solution then I should have changed the oil long ago...

bobistheoilguy.com

Better to change oil hot or cold?

I bet this has been covered before... probably many times - but I couldn't find it, so if you guys have an opinion or can give me some search terms or links that would be great. My Q has been sitting for 4-6 weeks untouched, and is in need of an oil change. Should I start it up and drive it for...

bobistheoilguy.com

How long to warm up the car before an oil change?

I know there's no right answer, but I'm wonder what you guys do. I remember when I'd collect samples to send to Blackstone, their recommendation was to drive at least 20 miles before collecting a sample. I've got a one-way commute over 40 miles, so my preferred time to do an oil change was a...

bobistheoilguy.com

Oil Change : Hot, Cold or Warm, or does it matter?

There are pros and cons to changing your oil when it Hot, or when it's Cold or somewhere in between. Is the any data to show more contaminants are removed from the engine when the oil change is performed when the oil is Hot? or Cold? or Warm? Sometimes my only real option is to change it when...

bobistheoilguy.com

Hot vs cold oil change video, long vs short drain time lapse.

Hopefully this video helps settle the debate between changing oil hot vs cold and how much extra oil you get out when you drain it for 12 hours. I'm sure most BITOGs already knew the answer to this question but I thought it would be nice to see the different temp oils in action, especially with...

bobistheoilguy.com

Engine temp before oil change?

I'm due for an oil change soon. I have a 2019 Ram 5.7L with under 10k miles. Wondering if it is best to change the oil while the engine is still hot (after it's had 5 - 10 mins to drain back into the pan) or after letting it cool off and sit overnight? I have heard several theories on the...

bobistheoilguy.com

Draining oil hot or cold questions?

1. Do you normally drain your oil hot, warm or cold? 2. If oil thins when cold and thickens when hot, why does hot oil drain quicker? * I drain my oil hot.

bobistheoilguy.com

your oil change temperature?

So guy's my seaching skills kinda sucks. vehical has not run in a week, so I'm guessing 90% plus oil is in the pan. Should I heat her up, or change it cold. Info. New to me 2007 Buick Rendezvous 145,000 KM 3.5 Letre engine Penzoil YB and M1 oil filter. no info on maintains from pervious owner...

bobistheoilguy.com

Changing oil when engine is cold.

I'm looking for some informed opinion about the necessity of warming the engine before changing the oil, which I've been doing for the past 30 yrs. I have 3 low mileage vehicles to change every 4 mos. with dino since they are used 90% of the time for short trips. I could probably save about 25%...

bobistheoilguy.com

Any benefit to changing oil when engine is warm???

A lot of OC procedures say to let the engine warm completely up before change the oil, but is that really necessary? Does it matter if you're using syn vs. dino? Most of the time, I either move my car into place at the house or it's already in place for the change, so the engine is pretty much...

bobistheoilguy.com

Hot vs cold oil change observation..

Normally, I'm a hot oil change guy. I change the oil after driving. My most recent oil change I did after the car sat overnight. When removing the oil filter in a hot oil change, a substantial amount of oil runs out (some from the filter, but I think a fair amount from inside the engine). I...

bobistheoilguy.com

Oil change - drain hot, warm, or cold?

Sorry if this has been discussed before....Something my grandpa always told me was to drain your oil when the engine was hot. After thinking about it shouldn't you drain when all of the oil is in the drain pan? It just seems that when the engine has just been turned off it could take hours for...

bobistheoilguy.com

Is it really important to change oil when it is warm?

I've read several threads that talk about changing oil shortly after a car has been driven a while. Why is this? Is there any harm in changing oil when the car has sat for a few hours, or even overnight? It seems to me that if a car were just run it would be too hot under there especially if...

bobistheoilguy.com

warming oil before an oil change.

Anyone else wing the pee out of their car/truck before taking it in for an oil change? His dropped the work truck off for a change and wrung the holy heck out of it on the way there, you know, to warm the oil up:)

bobistheoilguy.com

Wow… who knew that the search function on Xenforo actually worked?

 

[Kira]

Thanks kschachn for that.

 

[SHOZ]

If you change the filter when it's cold then not much oil spills out, at least on my Hyundais.

 

[BHopkins]

Well, if you believe that there are "particals" circulating in the engine, then the thing to do is to warm it up and get them suspended in the oil. So that when you drain the oil, they will be removed because they are in suspension in the oil.

By now, those particles are all in the bottom of the sump, where they will stay when you drain the oil.

So, are there, in fact particles in the engine?

I thought that, among all the other things I have learned here on BITOG, one of them is that among the additives in modern motor oils some of them have the specific function of keeping "particles" in suspension. The function of these additives is not so much to keep particles off the bottom of the crankcase, but rather to somewhat encapsulate the "particles", so they don't come in contact with the metal surfaces. If this is true, it shouldn't be needed to warm up an engine before oil change.

If it is not true, I've often wondered, which is worse? Draining a cold engine and risking "particles", setting in the bottom of the crankcase, not getting flushed out with the drained oil. Or, getting all those "particles" well distributed in warm oil, but now splattered all over and sticking to, all the interior surfaces of the crankcase.

I've drained hot, warm, and cold. IMHO, the only disadvantage to cold is the slow drain time. If that doesn't bother you, go for it.

 

[BHopkins]

@kschachn, I'm shocked that your search turned up only 14 previous discussions here on BITOG, on this subject. Are you sure you got your search criteria set right?

IIRC, the last discussion on this subject was only a few weeks ago.

 

[nate379]

I don't know that I've intentionally heated up any engine to drain it, but I do recall at least having it cool enough to not burn my hand. I don't think I'd want to wait for molasses to drain out so depending on how cold it is where you are I'd be inclined to let it run for a few minutes for that.

I hated that on cars when I worked at Sears. Some would come in hotter than a 2 dollar pistol, and trying to not get skin cooked off pulling filters than were near the exhaust.

We even had asbestos type sleeves to put on our arms but that was like trying to reach in with 2x4s wrapped around.

 

[Warstud]

Highly debatable ..... No right or wrong way to do it ... whatever way you think is best .

 

[michael007]

This excerpt is supposed to be about industrial equipment but I assume the same concept applies to cars if running a cleaning oil like HPL

 

[kschachn]

@kschachn, I'm shocked that your search turned up only 14 previous discussions here on BITOG, on this subject. Are you sure you got your search criteria set right?

IIRC, the last discussion on this subject was only a few weeks ago.

I stopped after that, there are more.

 

[4WD]

This saga goes on and on - I have poured a quart through with the drain plug out many times - and it’s always clean as bottled regardless of hot, warm, or cold …

 

[fdcg27]

I've always thought that you'd get the maximum amount of whatever crud there might be draining hot so that's what I've always done. My preferred method has been draining the oil immediately after the car is in the driveway,
It should be noted that plenty of residual oil will remain in the engine and contaminants along with it.
We aren't so much changing the oil as we are replacing most of it.

 

[totegoat]

Go ahead and drain it.

 

[Merek]

I say hot is best because I tried changing the oil once in my Civic that I didn't let get warm hot because I wanted to change the oil pan gasket but instead rounded the drain plug and had to make a special trip to Sears to get a bolt out extractor set which wasn't too costly just more of a pain.

Really I can see both thoughts on it, if the oil is cold then everything should be down into the pan ready to come out but if you let it warm up then the oil is all over inside the motor and when you remove the drain plug it takes awhile for everything to drip back down from the upper part of the motor, what's in the pan comes out fast but the rest of it just drips and drips for awhile. When changing the oil in my car I've gotten into the habit of putting the plug back in when it's trickling out and then replacing the oil filter and when that's done I remove the plug again and drain out the extra bit at the end. I use ramps so it's kinda tight in there with the drain pan as it is.