Drain oil regular way or use a extractor? - JeepForum.com

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post #1 of 19 Old 05-19-2017, 10:10 AM Thread Starter
steve_80
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Drain oil regular way or use a extractor?

I saw this thing in a local store and someone said this works better as it gets all the junk out of the bottom of the oil pan that a normal draining misses.

I assume it sucks the oil out the dipstick?

https://www.princessauto.com/en/deta...or/A-p8469512e

has anyone used one before? Would it actually get more out than using the oil drain plug?

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post #2 of 19 Old 05-19-2017, 10:31 AM
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I use an extractor on my other car - its a clean but tedious process. If you go this route make sure you get one that can handle the entire capacity of a WJ (6qt).

I've been considering trying out a fumoto valve on my WJ with my next oil change:
https://www.amazon.com/dp/B003VC7138...I3PV3EPZ7K96GZ


I do no off-roading with my WJ so im not so worried about hitting the thing - if that's you, this might not work out so well.

Just a VW guy in a Jeep forum
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post #3 of 19 Old 05-19-2017, 10:34 AM Thread Starter
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but wouldn't that valve the be same as using the drain? I don't mind using the plug as i never get oil on me or my tools.

I thought the pump would get more of the grit out.
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post #4 of 19 Old 05-19-2017, 10:40 AM
sdg3205
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There probably is next to no sludge in your oil pan anyway Steve. When i did my engine rebuild i dropped the oil pan and was surprised to see how clean it was. Modern oils are pretty clean, and if you've kept up with your oil intervals like my Jeep has had or run synthetics, you're probably fine.

There was a tiny bit of sludge right where the pan dips for the drain, but other than that it was spotless, even the pump pick up screen.
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post #5 of 19 Old 05-19-2017, 10:44 AM Thread Starter
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ok good, thanks, saves me $20
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post #6 of 19 Old 05-19-2017, 11:31 AM
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Quote:
Originally Posted by sdg3205 View Post
There probably is next to no sludge in your oil pan anyway Steve. When i did my engine rebuild i dropped the oil pan and was surprised to see how clean it was. Modern oils are pretty clean, and if you've kept up with your oil intervals like my Jeep has had or run synthetics, you're probably fine.

There was a tiny bit of sludge right where the pan dips for the drain, but other than that it was spotless, even the pump pick up screen.
Agreed.

I've dropped both the pans on my 4.7's (which many deem to be a sludge prone engine) and noted no noticeable build up or sludge with each having 150K and 183K on them, this includes my '00 which I have no prior maintenance history on. Same goes for under the valve covers.

Even if the previous owners only went to the local quick lube place every 3K miles the positive in that is the engine oil generally always hot when drained. This generally means the contaminants in oil are held suspension rather than settled at the bottom of the pan.
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It is what Jeeples has *PARTIALLY* stated.
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post #7 of 19 Old 05-19-2017, 11:57 AM Thread Starter
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ok thanks!
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post #8 of 19 Old 05-19-2017, 12:12 PM
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Agreed.

I've dropped both the pans on my 4.7's (which many deem to be a sludge prone engine) and noted no noticeable build up or sludge with each having 150K and 183K on them, this includes my '00 which I have no prior maintenance history on. Same goes for under the valve covers.

Even if the previous owners only went to the local quick lube place every 3K miles the positive in that is the engine oil generally always hot when drained. This generally means the contaminants in oil are held suspension rather than settled at the bottom of the pan.
Always on point, Jeeples.

I would save my money and do the regular way. Changing oil on the 4.7 shouldn't be hard. The only time I would justify using an extractor is if the oil change process was too time consuming.

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post #9 of 19 Old 05-19-2017, 12:18 PM
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I really doubt those devices will work better than the drain plug which is right at the bottom of the pan anyhow.

It is potentially useful fro draining stuff that does not have a real drain plug, however.

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post #10 of 19 Old 05-19-2017, 12:29 PM Thread Starter
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yeah i know, the plug is easy and clean. just someone told me that this gets more gunk out :P
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post #11 of 19 Old 05-19-2017, 01:00 PM
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yeah i know, the plug is easy and clean. just someone told me that this gets more gunk out :P
Was it a Nigerian prince that just needed a few thousand dollars to free up a few million?!
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post #12 of 19 Old 05-19-2017, 01:44 PM Thread Starter
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yes and his name was steve/david. funny name for a Nigerian prince.

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post #13 of 19 Old 05-19-2017, 01:51 PM
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I could see tasks where a pump like this would be handy but an oil change is not one of them.

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post #14 of 19 Old 05-19-2017, 01:54 PM Thread Starter
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would it be useful to make a transmission fluid/filter change a little cleaner? I don't have the pan with the drain hole.
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post #15 of 19 Old 05-19-2017, 02:00 PM
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Yup!

You could pump out some of the old fluid before you dropped the pan to change the filter. You could also use this for a quick differential fluid change, though I typically like to inspect the gears when I do a diff fluid change.

This would also be handy for extracting brake fluid, power steering fluid, and other random things that aren't designed to be easily changed. Granted, a turkey baster also works.

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Quote:
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