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Posted: 9/12/2005 5:24:24 AM EDT
[#1]
because it drains out quicker. that's why i do it, i have one of the sure drain deals and never have to touch it while hot. other than that, i say it's up to you.
oldsaltydog |
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Posted: 9/12/2005 5:24:49 AM EDT
[#2]
I will continue to change hot until further evidence is produced
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Posted: 9/12/2005 5:25:13 AM EDT
[#3]
Drains quicker and more effectively.
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Posted: 9/12/2005 5:28:33 AM EDT
[#4]
warm engine.
MB dealerships use a vacuum pump and suck it right out of the dipstick tube. From what I hear it's very effective |
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Posted: 9/12/2005 5:29:14 AM EDT
[#5]
 Exactly! 
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Posted: 9/12/2005 5:30:00 AM EDT
[#6]
Doesn't get any simpler than that. Of course I wait about 20 minutes or so to let as much oil as possible get back into the pan and to cool down some so as not to burn myself. |
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Posted: 9/12/2005 5:32:15 AM EDT
[#7]
Start your vehicle up. Drive it around the block, let it it cool for a few minuntes. Drain oil.
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Posted: 9/12/2005 5:32:44 AM EDT
[#8]
I'll open the pan hot and let it drain for a couple hours on a Sunday afternoon.
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Posted: 9/12/2005 5:33:47 AM EDT
[#9]
I always change the oil cold.
I leave my car on a lift in the shop(grounded not raised) or in the driveway at home and let the vehicle sit over night so as much oil as possible goes to the pan. Then I drain it the following morning . But on the rare occasion I'll let a mechanic change the oil while the vehicle is hot but thats rare indeed. But Ive never seen a technician change the oil cold they always bring them in and change the oil quickly then repeat. You'll never get all the oil out of the motor though. |
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Posted: 9/12/2005 5:41:39 AM EDT
[#10]
If you really want to clean it all out change it with the cheapest oil you can find then warm it up and change it again with the good stuff.
If I was going to sell a car, this is what I would do, |
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Posted: 9/12/2005 5:41:47 AM EDT
[#11]
If it was just a matter of changing the oil, I'd change it very warm or hot. However, there's usually a filter involved (almost always located in an inconvenient spot), so I wait until the engine cools to a manageable (not painful) level. Then I dump the oil and remove/replace the filter.
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Posted: 9/12/2005 5:43:10 AM EDT
[#12]
It's usually only as warm as it can get from pulling it from the driveway into the garage. I change the oil often enough that it doesn't make a difference in the grand scheme of things.
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Posted: 9/12/2005 5:43:31 AM EDT
[#13]
Warm engine
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Posted: 9/12/2005 5:51:00 AM EDT
[#14]
Hot engine.
Now, if you're worried about residual contamination, do what I do every now and then: 1) Hot drain. 2) Refill with cheap oil. Run 5 minutes. Drain. 3) Repeat step 2) once more if desired. 4) Replace oil filter and fill up with good oil. For REAL cleaning, add a can of SeaFoam and run the engine for 20 minutes before Step 1. |
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Posted: 9/12/2005 6:04:01 AM EDT
[#15]
+1. No use in burning yourself, both on the car or with the oil. |
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Posted: 9/12/2005 6:12:54 AM EDT
[#16]
I did that with my motorcycle (accidentally put in the wrong type of oil) and my oil looks nice and clean. Not sure if it's worth the hassle, though. |
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Posted: 9/12/2005 6:27:16 AM EDT
[#17]
I do the dual change about every 25 thousand miles. I go the whole way and change both the oil and filter twice. On the first of the two I used a thinner oil and I run the vehicle for a day or so and then do another change back to my regular oil. Really seems to clean out the block nicely.
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Posted: 9/12/2005 6:34:19 AM EDT
[#18]
When i worked at a ford dealership, if there was a worry of contaminents in the oil, remove the drain plug when the engine is warm, start the car, and pour oil into the engine with the drain plug removed. It'll cirulate and pump the system clean. Unless you sit there and rev the engine it wont do any damage. You are right though, there is a small amount that doesnt drain out.
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Posted: 9/12/2005 6:39:08 AM EDT
[#19]
OK - a lot of you have mentioned that you change your oil hot. That's fine, and I do agree that the viscocity is lower and you'll get *slightly* more oil out. On the other hand, very few of you which replied "hot" mentioned WHY, which is really what I'm looking for.
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Posted: 9/12/2005 6:42:42 AM EDT
[#20]
I drain mine warm but not hot. My oil filter is hard to reach, and I don't want to burn myself. Cold doesn't seem to drain quite as well.
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Posted: 9/12/2005 6:55:11 AM EDT
[#21]
Warm enough that the oil still flows really well, cool enough that a good percentage of it and contaminants have drained into the pan.....
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