I've always preferred to change my oil with a ice cold motor. The oil is not hot and all the oil and contaminents are drained into the pan for an easy exit. How about you guys?

Also, does the oil gush out once the oil filter is removed from the engine? I've never had a car where the oil filter was in a vertical position.

One more thing, does anyone know the part number for the drain bolt washer?

Thanks!!

 

i have always been taught to drain it warm...like drive around for 10 minutes...just so long as its not too hot to burn you...it drains a little easier because it is thinner

 

Yes, warm oil drains a lot quicker than cold oil. But, IMO that is not enough for me to crank my vehicle and drive around wasting gas. Plus all the oil / metal shavings will be thrown around in the motor after a drive.

I remove the drain bolt, then oil filter, then filler cap. Go inside eat breakfast and when I return oil is drained :D

 

Just remember to add the oil after breakfast
It all boils down to what ever "you" think is the best was to do your oil change

Both have there ups and downs

Engine cold:
ups:
-Engine is nice and cool
- easyer to work around vehicle when cool
- any Metal deposits are at the bottom of the oil pan
downs:
- drains slower
- engine is started cold with low oil pressure

Engine warm:
ups:
- drains fast
- Vehicle is started warm with low oil pressure
downs:
-Hot hot hot
-hot
-watch your self its hot


Ethier way is good because your changing your oil, witch is the most important thing you can do for your vehicle... Makes cars :D

 

If you want it warm I would say just let it run for 1min. 10min of driving should get it near NOT, so thats almost 200*. With only 1min of warm up at idle it should only get up to like the 50* range maybe not even that.

 

Ive been working on cars and heavy equipment for over 15 years!! you should always warm up the car before you change the oil! THE PIONTT OF IT IS THAT IT GETS ALL THE JUNK THAT SETTLES IN YOUR ENGINE TO COME OUT OF SUSPENSION! You want to get as much of the crap out of your engine! Not to mention your oil filter should be of a good enough grade to be catching any large particles such as metal shavings! if you drain it cold all the crap that settles to the top of your head and other places like that will still stay traped in the engine! it also thins out the oil so it drains better and helps to further remove debries and build up!!! DONT DRAIN THE OIL COLD!! It may be easier on you and your hands but not as good on your car!!!

 

I'm not understanding the last statement (part in CAPS). Can you exaplain that with a little more detail?

I am thinking the shavings / debris will drain down to the lowest point as the oil drains off the parts inside the motor. Is this not true?

I leave my oil draining for an hour + usually. Most places replace the drain plug as soon as the oil stops dribbling. I really doubt the debris / all the oil have time to drain from the top of the motor on down to the drain plug within a couple of minutes.

It seems like both have their pros & cons

 

[quote="tcm_xB"]
its a $20-30 oilchange.... wtf do you expect? a 1 hour job

out the door in 10-15min or the dealer is losing money


oil can be changed hot or cold, hot will burn but will come out quicker, cold wont burn and will come out slower


thats the only "pros" and "Cons" do not get all worked up here, its an oilchange not rocket science
i'm guessing changing the coolant would be a 2 day job for you guys

the guy that has worked on cars for 15+ years would drive it around for 200 miles and then drain it because if he drains it cold, it might come out his suspension....
this is just as bad as the thread about torqueing the oil drain plug or 99% of the other threads on this forum.

be sure to measure your rotor thickness with a micrometer aswell, that has to be done every 10K miles... and torque your lugnuts and the screws holding your stereo

this place is right up there with toyotanation.com with worthless threads

 

And so is your worthless response to a "worthless thread"... Your time must be worthless as you wasted some of it replying. How about the back button? Or how about your ability to read the topic before entering the thread and being able to say: "Hey, this sounds like a thread I think is worthless, maybe I should choose another one to view?" Perhaps you value deeming things worthless....??? Move on, and all is well. Otherwise, start your own forum.

 

[quote="mach5"]That is what forums are for. To discuss technical issues and post opinions. You sure do have a lot of posts for someone who thinks this place has a lot of worthless threads.

No need for you to post if you can't contribute to the thread. That's worthless.

 

all the little bits will have settled onto the bottom of the oil pan. when you drain it cold, all the little bits will drag along the bottom and not flow out.
if you run the motor, the little bits get lifted into the oil (becomes suspended) and will now drain out with the oil.

science project....
take a 2 glasses, fill it with iced tea/lemon aide/ water (the oil).
now add a few spoonfulls of sugar (the little bits).
let them sit for a few mins. (cold motors)
now drain one glass (drink it/pour it out ) notice all the stuff left in the bottom ????
take the other glass and stir it up. now drink it/pour it out the same way. a lot less left on the bottom, right???

Mr. Wizard was the best....

 

I see where you are getting at. I think the oil is thick enough to pull any (at least most) shavings down to the drain plug.

Actually, most of the shavings should be stuck to the drain plug since it has a magnetic charge. That is why you should wipe the plug before replacing

 

Ok look what im trying to explain is that any solids metal shaving soot what ever the vast majority of it will go back into suspension when you run the car I.E. It gets picked up by the oil! When you let a car sit it settals to the lowest piont its at if the debries is in the head do you think its all going to drain back to the oil pan? The piont is to get as much of the sooot dirt metal shaving into the oil pan before you drain it! driving the car and warming it up helps this process! Yes if you drain it cold and let it sit for an hour it wil absolutly drain all the crud out of the oil pan!!! BUT THAT IS IT!!! your trying to get as much out as you can!!! The whole job of the oil is to help get that stuff out!! And if you dought me about the metal shavings cut open your oil filter some time and see what gets cought in there you would be amazed!!


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since our oil filters are in the vertical position just fill the filter up before you install it on your car no longer need for a dry start after an oil change :D