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#4677497 - 02/25/18 10:41 AM What type of material for oil drain plug & washer?
twj348 Offline


Registered: 02/14/18
Posts: 7
Loc: Canada
Is it okay to use an aluminum drain plug in a steel oil pan? What about using a stainless steel drain plug in an aluminum oil pan? I'm assuming that mixing two different materials may cause corrosion. Also, I've noticed drain plug washers come in steel, aluminum, and copper, but I'm not sure which is best to use.

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#4677516 - 02/25/18 10:47 AM Re: What type of material for oil drain plug & washer? [Re: twj348]
Snagglefoot Offline


Registered: 12/31/17
Posts: 1713
Loc: Alberta
Iím thinking itís coated in oil enough to never corrode.

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#4677526 - 02/25/18 10:50 AM Re: What type of material for oil drain plug & washer? [Re: twj348]
Trav Offline


Registered: 11/20/06
Posts: 18870
Loc: MA, Mittelfranken.de
You can use both those in the applications you posted, Personally I am not a fan of aluminum drain plugs or plastic washers. Aluminum and copper washers are good the steel ones I have seen have some sort of rubber seal and are also okay, if it were just plain steel I wouldn't use it.
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#4677528 - 02/25/18 10:52 AM Re: What type of material for oil drain plug & washer? [Re: twj348]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX

.
In salt water - do not mix.

In an oil pan threads - Corrosion will never ever ever ever ever ever ever happen. Ever.
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#4677559 - 02/25/18 11:09 AM Re: What type of material for oil drain plug & washer? [Re: Trav]
4WD Offline


Registered: 09/21/10
Posts: 6366
Loc: Texas
Originally Posted By: Trav
You can use both those in the applications you posted, Personally I am not a fan of aluminum drain plugs or plastic washers. Aluminum and copper washers are good the steel ones I have seen have some sort of rubber seal and are also okay, if it were just plain steel I wouldn't use it.


Yes Ö I buy copper washer assortment packs Ö canít go wrong if you donít over torque them Ö
Can be handy for wiring too Ö

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#4677646 - 02/25/18 12:38 PM Re: What type of material for oil drain plug & washer? [Re: twj348]
CR94 Offline


Registered: 03/20/16
Posts: 1120
Loc: Western S.C. since 1996
I've had cars with plain steel, plain aluminum, and plastic-coated aluminum drain washers. None ever leaked or required replacement for any other reason. The plain aluminum one gradually became thinner, so after several hundred thousand miles, it couldn't fall off the plug---a good thing.
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#4677764 - 02/25/18 02:32 PM Re: What type of material for oil drain plug & washer? [Re: twj348]
Claud Offline


Registered: 02/11/14
Posts: 593
Loc: Margate England
Some of the recent cars on the European market have plastic drain plugs. Guess what happens when you try to undo it on a hot engine?.
Nice scam methinks....

Claud.

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#4677789 - 02/25/18 03:04 PM Re: What type of material for oil drain plug & washer? [Re: twj348]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3398
Loc: Columbus,Nebraska
I've used aluminum drain plug gaskets in the last six Toyotas and Hondas and corrosion is not a problem. Use a new gasket, torque to 33 ft.lbs. or whatever and no problems,never.

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#4677792 - 02/25/18 03:07 PM Re: What type of material for oil drain plug & washer? [Re: Claud]
jaj Offline


Registered: 08/21/03
Posts: 1060
Loc: Vancouver, Canada
Originally Posted By: Claud
Some of the recent cars on the European market have plastic drain plugs. Guess what happens when you try to undo it on a hot engine?...

Let me guess... it comes off and oil comes out?

I've got a 2016 Ford Mustang V8 with a plastic drain plug - 1/3 of a turn and it's out, 1/3 of a turn and it clicks back in. The challenge is that it's about an inch in diameter and 10 quarts of hot oil comes out REALLY FAST.

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#4677795 - 02/25/18 03:11 PM Re: What type of material for oil drain plug & washer? [Re: Claud]
rooflessVW Online   content


Registered: 12/24/11
Posts: 4041
Loc: North Carolina
Originally Posted By: Claud
Some of the recent cars on the European market have plastic drain plugs. Guess what happens when you try to undo it on a hot engine?.

Ever use one? They're great!
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#4677930 - 02/25/18 05:38 PM Re: What type of material for oil drain plug & washer? [Re: Claud]
Trav Offline


Registered: 11/20/06
Posts: 18870
Loc: MA, Mittelfranken.de
Originally Posted By: Claud
Some of the recent cars on the European market have plastic drain plugs. Guess what happens when you try to undo it on a hot engine?.
Nice scam methinks....

Claud.


They are in composite pans AFAIK but I guess there is no reason they couldn't be used in steel or aluminum, all plastics are not weak or junk.
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#4677963 - 02/25/18 06:09 PM Re: What type of material for oil drain plug & washer? [Re: Trav]
4WD Offline


Registered: 09/21/10
Posts: 6366
Loc: Texas
This 5.3L two piece does add another gasket but puts the plug in steel. Also like how the plug and the filter are right behind the belly shield so it stays in place for oil change. Does this access the screen or what?


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#4678599 - 02/26/18 10:45 AM Re: What type of material for oil drain plug & washer? [Re: rooflessVW]
Claud Offline


Registered: 02/11/14
Posts: 593
Loc: Margate England
Originally Posted By: rooflessVW
Originally Posted By: Claud
Some of the recent cars on the European market have plastic drain plugs. Guess what happens when you try to undo it on a hot engine?.

Ever use one? They're great!


What is it that makes them great?.
I've yet to come across an oil drain plug that gave me cause to think it was even slightly above average, never mind great.

Claud.

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#4679049 - 02/26/18 06:41 PM Re: What type of material for oil drain plug & washer? [Re: twj348]
dlundblad Online   happy


Registered: 09/30/13
Posts: 10025
Loc: Indiana
I can't say I've ever seen an aluminum washer with a steel pan.

You wouldn't want to use SS for a washer. Too hard and wouldn't crush.

Find an OE washer for your vehicle and use that style.


Edited by dlundblad (02/26/18 06:42 PM)
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#4679368 - 02/27/18 04:04 AM Re: What type of material for oil drain plug & washer? [Re: dlundblad]
Subdued Offline


Registered: 10/06/13
Posts: 793
Loc: Youngstown, NY
Originally Posted By: dlundblad

You wouldn't want to use SS for a washer. Too hard and wouldn't crush.

Everything can crush.
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