Transmission magnetic drain plug

[Evox787]

Just making this post to thank whoever shared the information on the Greddy magnetic drain plug, 23901303. If I’m not mistaken, it’s for the GR86. The thread pitch is M20-1.5, and it fit like a glove. Now the Type R has magnetic drain plugs for both the engine oil and transmission.

If anyone else needs the information, here it is: the engine side uses the Spoon plug, and the transmission uses the Greddy plug. I did the change with OEM fluid at 30k miles because I daily drive mine and don’t think I need to switch to anything else for now.

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[Spart]

While a magnetic plug is a good idea (my truck has one factory installed, for instance) that Greddy plug is anodized aluminum if the descriptions online are correct.

I really don't like putting aluminum bolts in aluminum holes. Galling and stripping is a common issue, and this is a fastener designed to be removed and replaced. OEMs don't use aluminum for a reason, here.

There's also this phenomenon to be aware of with Greddy: https://www.ft86club.com/forums/showthread.php?t=135550

If the glue or epoxy or whatever that's holding that magnet lets go, that magnet is going to find the first ferrous thing it can and stick to it. The plug body isn't ferrous so the magnet won't stick to it, neither is the transmission case.

I would take a look at the negative reviews on Amazon with other experiences of failure with aluminum magnetic plugs:

https://www.amazon.com/Mishimoto-MMODP-2015B-Magnetic-Drain-Black/dp/B006DCFHW0/
https://www.amazon.com/GReddy-13901302-Magnetic-Mitsubishi-Suzuki/dp/B01HZ1MY4Q/

Unsurprisingly, having a hole drilled in the bolt and being made of aluminum makes it pretty weak. If you get aluminum-on-aluminum galling, that will increase the torque required to remove it and you could snap the head off.

Personally if I was going to do this, I would want to use an OEM-style plug. Meaning, steel.

 

[AspecR]

Just making this post to thank whoever shared the information on the Greddy magnetic drain plug, 23901303. If I’m not mistaken, it’s for the GR86. The thread pitch is M20-1.5, and it fit like a glove. Now the Type R has magnetic drain plugs for both the engine oil and transmission.

If anyone else needs the information, here it is: the engine side uses the Spoon plug, and the transmission uses the Greddy plug. I did the change with OEM fluid at 30k miles because I daily drive mine and don’t think I need to switch to anything else for now.

The FL5 transmission already has a magnet inside it so a magnetic plug is unnecessary for it.

 

[Evox787]

My EVO has magnet inside also but came with a magnetic plug I thought it was the same scenario.

 

[Evox787]

While a magnetic plug is a good idea (my truck has one factory installed, for instance) that Greddy plug is anodized aluminum if the descriptions online are correct.

I really don't like putting aluminum bolts in aluminum holes. Galling and stripping is a common issue, and this is a fastener designed to be removed and replaced. OEMs don't use aluminum for a reason, here.

There's also this phenomenon to be aware of with Greddy: https://www.ft86club.com/forums/showthread.php?t=135550

If the glue or epoxy or whatever that's holding that magnet lets go, that magnet is going to find the first ferrous thing it can and stick to it. The plug body isn't ferrous so the magnet won't stick to it, neither is the transmission case.

I would take a look at the negative reviews on Amazon with other experiences of failure with aluminum magnetic plugs:

https://www.amazon.com/Mishimoto-MMODP-2015B-Magnetic-Drain-Black/dp/B006DCFHW0/
https://www.amazon.com/GReddy-13901302-Magnetic-Mitsubishi-Suzuki/dp/B01HZ1MY4Q/

Unsurprisingly, having a hole drilled in the bolt and being made of aluminum makes it pretty weak. If you get aluminum-on-aluminum galling, that will increase the torque required to remove it and you could snap the head off.

Personally if I was going to do this, I would want to use an OEM-style plug. Meaning, steel.

I ended up ordering other one instead will get replaced on the next’s change if everything goes well thanks for the recommendation, but also people here talk so much about the "impressive" quality of the JDM parts and everyone suck it up so much if you say something negative you get bombarded with you’re wrong and all that other nonsense. I thought that by getting a part from a "reputable" brand will not be affected. But like everything you overpay for parts to get played. Thanks for the recommendation will definitely check out the one I ordered had better reviews and is steel rather than aluminum also my EVO used to have magnet on the transmission and also a magnetic drain plug I assume that by putting one will have the same effect that on my EVO will no hurt anything.

 

[Spart]

I ended up ordering other one instead will get replaced on the next’s change if everything goes well thanks for the recommendation, but also people here talk so much about the "impressive" quality of the JDM parts and everyone suck it up so much if you say something negative you get bombarded with you’re wrong and all that other nonsense. I thought that by getting a part from a "reputable" brand will not be affected. But like everything you overpay for parts to get played. Thanks for the recommendation will definitely check out the one I ordered had better reviews and is steel rather than aluminum also my EVO used to have magnet on the transmission and also a magnetic drain plug I assume that by putting one will have the same effect that on my EVO will no hurt anything.

Man, I would not roll the dice on an alphabet-soup brand from scAmazon either. WTF is "Dsnaduo" if not randomly-generated gibberish? You think they're going to back you up if the magnet comes out of that one? That company is in China and they're purposely setup to have zero liability exposure in the US market. That's the way all alphabet-soup brands on scAmazon operate.

The only company I would vouch for making aftermarket magnetic drain plugs is GoldPlug. I have also heard good things about Dimple, but haven't used them personally.

 

[Evox787]

Man, I would not roll the dice on an alphabet-soup brand from scAmazon either. WTF is "Dsnaduo" if not randomly-generated gibberish? You think they're going to back you up if the magnet comes out of that one? That company is in China and they're purposely setup to have zero liability exposure in the US market. That's the way all alphabet-soup brands on scAmazon operate.

The only company I would vouch for making aftermarket magnetic drain plugs is GoldPlug. I have also heard good things about Dimple, but haven't used them personally.

Thank you for sharing and catching that cancel the order and look up the Goldplug company thank you for the suggestion.

 

[LogicalCC]

I ended up using a Votex plug for my transmission and a bonoss plug for my oil pan.

Quality and fitment was excellent. I have only put a few hundred miles on them, so don't know the longevity of them as of yet, but will keep an eye on it.

Overall they seem to be some of the better options.

https://votex-us.com/DP008?searchid=19077&search_query=dp008

https://www.bonoss.com/product/bono...Sd7wHRlD_a27W_y9NzoCxPWzvLISaxT4wNOWuoWj8DaYi

 

[ctechauto]

I ended up using a Votex plug for my transmission and a bonoss plug for my oil pan.

Quality and fitment was excellent. I have only put a few hundred miles on them, so don't know the longevity of them as of yet, but will keep an eye on it.

Overall they seem to be some of the better options.

https://votex-us.com/DP008?searchid=19077&search_query=dp008

https://www.bonoss.com/product/bono...Sd7wHRlD_a27W_y9NzoCxPWzvLISaxT4wNOWuoWj8DaYi

Votex is good stuff. This is what we run on all our shop cars and recommend to customers.

We do NOT recommend any aluminum plugs, regardless of reputable brand or not, for the same reasons already listed here.

 

[PNEUMA]

Votex or nothing

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