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Old 02-15-2011, 10:21 AM   #1
alfa147x
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Question How long to let engine cool before changing oil?

Tonight I'll be driving 50 miles to my parent's house to change my oil. Any idea as to how long I should wait before getting underneath the car?

Outdoor temperature should be around 45f

Thanks guys
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Old 02-15-2011, 10:25 AM   #2
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As soon as you like.

Why worried?
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Old 02-15-2011, 10:27 AM   #3
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Originally Posted by Marlin1975 View Post
As soon as you like.

Why worried?
Kinda, I suck at changing oil and I tend to get oil everywhere.

I can probably avoid getting oil everywhere if this car has the oil filter in a decent location. (2007 Civic Coupe Lx)
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Old 02-15-2011, 10:29 AM   #4
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Let is sit long enough to where it doesn't burn the shit outta your hands when you crack the plug and filter. I usually give it an hour or so, but I take the plug out really slow and once it start dripping slowly, I touch it, if it's still burning hot I wait longer.
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Old 02-15-2011, 10:31 AM   #5
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I do it right away. Haven't burned any flesh off yet and I do spill on my hands.
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Old 02-15-2011, 10:35 AM   #6
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I usually wait around 30 minutes. I open the hood and take off the oil fill cap to aid in the cooling.
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Old 02-15-2011, 10:41 AM   #7
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Thanks guys!

I should invest in jack + stands but I move too much. (Moved 6 time last year)
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Old 02-15-2011, 10:45 AM   #8
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30 to an hour. I have done it with in 10 min thinking I was going to burn my self. It was hot sure but you could touch it for like 15 sec then go its too hot.

Take a look at

http://www.amazon.com/Wedco-12-1-Qua...7788336&sr=1-2

I have this, Its great the middle yellow thing is just a funnel for it.

It does not leak like the blitz crap (what a mess)
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Old 02-15-2011, 10:46 AM   #9
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Any way to tell if the oil is conventional or synthetic?

I just want to know what the last owner put in... I forgot to ask.
I bought mobil 1 synthetic oil to go in.
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Old 02-15-2011, 10:48 AM   #10
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I don't think you would be able to tell at this point.
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Old 02-15-2011, 10:59 AM   #11
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I wait 5-10 min max, but you've gotta be careful with the drain bolt. I have a nice snap-on 'stiff' universal that lets me push on the drain bolt until no threads are left then yank it away.

I would not wait longer than 30minutes... Minute particles start to settle, and the oil is thinner when hot thus drains easier.



My usual routine is warm up to operating temp, spirited drive/ride, come home, shut engine off, change into 'oil changing clothes' and get water etc ready (takes about 10 min)

I then start it to put it on the ramps, so the engine runs for 2-3 minutes (in my mind it mixes the oil back up without getting too hot) then drain.


I bought one of these for dad (on all my vehicles this sticks straight out of the bottom so is a no go) and he loves it. Drive car up on ramps, flip lever, wait 45 minutes and change oil filter.

http://www.quickoildrainvalve.com/
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Old 02-15-2011, 11:00 AM   #12
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Quote:
Originally Posted by alfa147x View Post
Any way to tell if the oil is conventional or synthetic?

I just want to know what the last owner put in... I forgot to ask.
I bought mobil 1 synthetic oil to go in.


I wouldn't worry too terribly much. People used to say to never ever mix syn and conventional, but apparently it's basically the same thing as adding semi-syn...


I'd probably not wait 7k miles on the first change though, do it around 3 or whenever you'd usually change the conventional out.
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Old 02-15-2011, 11:06 AM   #13
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I also probably need to change the MTF the car is at 55,000 miles. I might wait one more oil change so I can get the tools together.
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Old 02-15-2011, 11:10 AM   #14
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Quote:
Originally Posted by alfa147x View Post
Any way to tell if the oil is conventional or synthetic?

I just want to know what the last owner put in... I forgot to ask.
I bought mobil 1 synthetic oil to go in.

Very easy, from wikia...
http://uncyclopedia.wikia.com/wiki/Oil#Common_Myths
  1. Synthetic oil is like regular oil but not real. It also smells like cinnamon, and this makes it easy to make sure the car monkey used the right stuff. If it does not smell like cinnamon, then it is regular oil, and will not attract Shaitan.
So what does your oil smell like?
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Old 02-15-2011, 11:12 AM   #15
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Quote:
Originally Posted by SpatiallyAware View Post

I would not wait longer than 30minutes... Minute particles start to settle, and the oil is thinner when hot thus drains easier.


Oil filters filter down to such small particles that I dont even think it will matter much.
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Old 02-15-2011, 11:18 AM   #16
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Wear gloves and lay out newspapers so you don't spill on the ground.
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Old 02-15-2011, 11:35 AM   #17
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Quote:
Originally Posted by thescreensavers View Post
Oil filters filter down to such small particles that I dont even think it will matter much.
You'd think so, except blackstone labs strongly recommends not waiting after running when you're doing a used oil analysis... So there must be some particles that settle etc..
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Old 02-15-2011, 12:16 PM   #18
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Oil drains best when it is hot. Once the motor is shut off it makes no difference how long you wait to drain it. What I do is drain it as soon as I can get to the drain plug. On my car, that means jacking up the front end and removing passenger tire to get to the oil filter. Car is lowered back down a bit while it drains.
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Old 02-15-2011, 12:21 PM   #19
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Quote:
Originally Posted by bruceb View Post
Oil drains best when it is hot. Once the motor is shut off it makes no difference how long you wait to drain it. What I do is drain it as soon as I can get to the drain plug. On my car, that means jacking up the front end and removing passenger tire to get to the oil filter. Car is lowered back down a bit while it drains.
One difference would be the temperature, I agree it drains best when hot but when it burns the hell outta your hand I would recommend waiting 15-20 minutes or so. Still plenty hot but not hot enough to burn.
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Old 02-15-2011, 12:43 PM   #20
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wear latex gloves. problem solved.
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Old 02-15-2011, 12:46 PM   #21
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wear latex gloves. problem solved.
Latex gloves are heat resistant? Not being smart, just asking out of curiosity.
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Old 02-15-2011, 12:49 PM   #22
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Quote:
Originally Posted by DJK Frank 16 View Post
Latex gloves are heat resistant? Not being smart, just asking out of curiosity.
helps...wear 2 if one is not enough and having a rug to block the spray helps.


mind you it is a good idea to let the car cool a bit. half an hour ought to do. Oil should still free flow.
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Old 02-15-2011, 12:51 PM   #23
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Will have to give that a try, some days I just don't feel like waiting and would love to be able to jump right in and change it, never even thought of latex gloves.
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Old 02-15-2011, 12:55 PM   #24
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Quote:
Originally Posted by Marlin1975 View Post
Very easy, from wikia...
http://uncyclopedia.wikia.com/wiki/Oil#Common_Myths
  1. Synthetic oil is like regular oil but not real..
Its imaginary oil?
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Old 02-15-2011, 01:00 PM   #25
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Quote:
Originally Posted by SpatiallyAware View Post
I wait 5-10 min max, but you've gotta be careful with the drain bolt. I have a nice snap-on 'stiff' universal that lets me push on the drain bolt until no threads are left then yank it away.

I would not wait longer than 30minutes... Minute particles start to settle, and the oil is thinner when hot thus drains easier.



My usual routine is warm up to operating temp, spirited drive/ride, come home, shut engine off, change into 'oil changing clothes' and get water etc ready (takes about 10 min)

I then start it to put it on the ramps, so the engine runs for 2-3 minutes (in my mind it mixes the oil back up without getting too hot) then drain.


I bought one of these for dad (on all my vehicles this sticks straight out of the bottom so is a no go) and he loves it. Drive car up on ramps, flip lever, wait 45 minutes and change oil filter.

http://www.quickoildrainvalve.com/
That would be awesome, forgot about those!
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