I just fitted a filtermag a few weeks ago and I'm just waiting for the next oil change to cut open the filter to compared to my last oil filter without the filtermag to see if it really does work like they say it does.

But another thing I've noticed accidentally one day was that I was brushing with my electric tooth brush (sonicare) and I was laying down the brush head when the magnets at the end of the head picked up a pair of keys I had on the table. They are about the size of a nickle and there's 2 of them on the brush. I was surprised at the strength of the magnets they put on those sonicare toothbrushes and I think it actually is about the same, if not more powerful than the ones in the filtermag? And the thing is that the brush heads are disposables (smack myself for not ever keeping my old ones) but I think I might try and pry those loose and put in on my filter the next time I change my brush.
"Ghetto mod" perhaps? :D

Oh and ummm... I'm not trying to say ppl should do this instead of buying a filtermag (in case they try to sue me!) lol

Sounds plausible, since FilterMAGs (http://rx7.com/store/rx8/rx8engine_maintenance.html) are $40 US

Oh, by the way, it's spelled "Titanium Gray" :rolleyes:

LOL, there.... happy? :p

Not yet... Look again :)

Lol

If you have an old PC hard drive that's no longer needed, you can get a pair of extremely powerful magnets by disassembling the drive.

I just fitted a filtermag a few weeks ago and I'm just waiting for the next oil change to cut open the filter to compared to my last oil filter without the filtermag to see if it really does work like they say it does.

How many more miles do you have to get there? I was considering adding this to my engine also. Does it completely surround the oil filter?

I'm at 29000kms right now gonna change oil at about 32000 so yea I"ll post pics when I get them!
It surrounds about 1/3rd of the filter, there's larger models but then our small filters on the 8 can only use their smallest one (that is the same model used on motorcycles, go figure)

As an oil filter will only catch particles 20-30 microns or above, anything below this just circulates around the engine...which equals WEAR!..

For those who don't know Mazda in the 09 RX-8's re-introduced a Sump Pan magnet (inside the pan), which they last used in the FC RX-7 (same magnet).,
So I can only come to the conclusion that Metal Particles smaller than the thickness of your hair is doing damage to the RENESIS, otherwise why did Mazda re-introduce an
internal sump magnet for 09's after an absence of 10 Years without one in ALL FD RX-7's and 04-08 RX-8's????

SO I can Thoroughly recommend the following product...

www.filtermag.com

The SS250 Magnetic Filter to be exact....have a look at the site...and BUY one, or from eBay.

I have also order one so I can have double the Magnetic catching of metal Particles.

You can also use the STRONG Magnets that are used inside ANY old PC Hard drive, Pull one apart and you will see the two magnets inside, they are FLAT though, but should still hold on the oil filter's metal case.

DO NOT USE FRIDGE MAGNETS OF ANY KIND, ONE THEY COULD FALL OFF AND TWO THEY ARE NOT STRONG ENOUGH.

And yes I know this is an OLD thread revival...

BTW, You don't want any kind of Magnet(s) that may move or fall off, otherwise you will be allowing any "caught" metal to suddenly go back into your oil stream at once.

huh 5 yr revival!!! SWEET

I received my SS250 FilterMag Today in the Post...only 7 days from the USA guys...pretty good.

Anyway, I will install magnet over this weekend, so it will get use for 2000 KMS (1200 Miles) until my 10,000 KM (6,000 Miles) Service with Oil Filter Change.

I tried the SS250 on a new Oil Filter I have in my stock, it clamps on really well and holds tight.

I hope I have enough clearance with the SS250 on my cars Oil Filter Body, I have the 09 Series II RX-8 with the 180 degree (approx) alloy flange that is in the way, I may have to shave or cut some of the Black Plastic Frame that holds the 8 magnets together.

Will let you know the outcome...

Series I (04-08) RX-8 owners (any other RX Models) will have NO trouble in clicking on the SS250 Filter Magnet...easy as cleaning your teeth!

Ash

OK, Decided to fit the Filter-mag today..

All went smooth, simple as, however there is only one spot the SS250 (only one for the RX-8) will fit on 09 models and that is on the top side of the filter body.

You are meant to position it underneath for a horizontal/angled filter but there is just no way you can do it, the alloy flange is in the way plus a few bolt heads.

It is also meant to be away from the heat side of your engine, but again not possible, however, it appears there will be air circulation there being at the front and bottom of the rotary timing cover.

Fortunately the filter is on a slope as you have to remove the Magnet before you unscrew the oil filter, but the contaminated oil wont run back into the engine...not possible.

I will report back in 2000 KMs when I do an oil change and see if I can catch or see any metallic particles.

.....I will report back in 2000 KMs when I do an oil change and see if I can catch or see any metallic particles.

That's ~1200 miles .... do you plan on cutting the filter open to look for the metallic particles? Look forward to hearing your findings.

cheers :beer05:

^^^ Yep, will do.

OK, Did my Oil filter change, here are the results from the Filtermag after about 1,000 MILES...ONLY!

Considering my 09 has an Internal factory sump pan magnet, I was surprised at how much "metal" the Filtermag picked up, so it now also filters the oil as I am driving, the sump one does it when the car sits.

I definitely would recommend ALL Series 1 and FD RX-7 owners to have this Magnet on their oil filters as you have no other catching device for fine metal particles that wear off below 25 microns in size....your oil filter just will not catch them.

The benefits...cleaner oil and filter which must help engine life.

The particles are like Black 'Toothpaste' when you rub it between your fingers, extremely fine METAL!.

Available from www.filtermag.com

http://www.rx8club.com/attachment.php?attachmentid=141055&d=1245962472

http://www.rx8club.com/attachment.php?attachmentid=141056&d=1245962472

I believe the product works as advertised but there is no long term test results to see just how much more mileage life it adds.

After 90K that is $150 for filters as opposed to $1,350. Let's say the car gets $160K before the engine needs work as opposed to 200K (again no hard data to even guesstimate).
That would equate to $ 265 compared to 2385 at 3K interval changes. Go ahead and enjoy those last hard 40K miles with all the other repairs. I'll give you the thumbs up when I pass by in a new rotary car.

I believe the product works as advertised but there is no long term test results to see just how much more mileage life it adds.

After 90K that is $150 for filters as opposed to $1,350. Let's say the car gets $160K before the engine needs work as opposed to 200K (again no hard data to even guesstimate).
That would equate to $ 265 compared to 2385 at 3K interval changes. Go ahead and enjoy those last hard 40K miles with all the other repairs. I'll give you the thumbs up when I pass by in a new rotary car.

What a weird response, why even bother servicing your car with such a view, I have no idea what your other figures are on about???

What the hell are you talking about "After 90K that is $150 for filters as opposed to $1,350 " ....$1350 for what???

The Filtermags are REUSEABLE..that is it is a ONCE of Expense of $38.00..that is all, you reuse it when you change your oil filter at NORMAL service intervals.
It lasts a lifetime.

I guess though Mazda Japan just installed an oil filter magnet in the sump of 09 RX-8's for NO reason.

Mazda have not used this magnet in any rotary since 1985-1989 FC RX-7.

Is this enough eveidence to show that a magnet (S) in your oil filter system has engineering merit???

See your point. It's a one time purchase of $45 magnets. I think it was late at night so I had a young senior moment there. Still though, the engine is eroding away. It helps slow it down but how much are you really gain in mileage is my question.

There's a little secrect an electrician told me about wires ends. If you put some vaseline on the wire ends they don't corrode. Granted, it takes a long time for new home wires to corrode and break at the connections but it does work from his experience. Maybe the auto industry holding back, I don't know. I had a 85 golf with 250K still running strong with no magnets so I guess that's why I'm a skeptic.

I've always wondered about those magnets, but never bothered. That is quite a convincing bit of analysis that you did. I think i will get one and give it a try...

I've tried putting a magnet out of a hard disk onto my family SUV, where the oil filter sits 95-degrees from the upright position (read a really BAD position)...

After almost 2 years, at least 3 oil changes and occasional off-roading, the magnet hasn't fallen off yet.
(I heard that the magnets in hard drives are pretty strong magnets... guess there was some truth to them.)

I guess someone could try using that on the 8 if they wanted to...

BTW... in theory the attracted particles should be slightly charged after being near a magnet for extended periods of time in hot oil... so in theory even if you remove the magnet the particles shouldn't immediately pass back into the engine...

Now if you start rev'ing then it could be an issue..

I just wanted to inform ALL RX-8 owners that IMO this is a critical MOD or ADD on which will help to save your engine and keep your engine OIL from circulating minute metal particles around your engine below 25 microns...your Oil Filter CAN NOT Catch these.

Considering the Series I RX-8's 04-08 have NO factory installed Sump Magnet like the FC RX-7, and Mazda have re-introduced this same sump magnet in the 09 RX-8's....I would ask...WHY????

IT IS A SMALL PRICE TO PAY TO HELP YOUR RENNY'S ENGINE...
PLEASE JUST DO IT!!

ASH8, you've convinced me but, but you really do push the Filtermag's. Has someone bought shares :)???

I duct taped a couple of hard drive magnets to my oil filter. The only thing I would like to do different is to the magnets themselves. They are glued (epoxy ?) to a metal bracket and I would like to separate them for a more convenient installation. If someone knows an easy way to do that, could you post it.

i too have been running the filter mag-- i have a relocated oil filter that makes it easier.
damn thing works--its cheap--and to the guys that are willing to run synthetic to complain about cost---thats just stupid.
Ash has given good advice and showed the good results---appreciate it dude
rotor on
olddragger

Thanks ash for cutting that open. Never had the filter mags, but had the drain plug mags.

FYI, I was bored so I ripped apart a couple of old but never used 30GB SCSI drives and the magnets were twice as thick and twice as strong as the ones I pulled from a 80Gb Seagate IDE drive. We were actually having a contest to see who could push the opposite ends together. It was extremely hard, a couple of the pussies here at work couldn't do it, haha. I slapped the two from the IDE drives on the oil pan near the drain plug.

If the magnets weren't so huge at the powder metal plant I worked at I'd slap that to the oil pan, but then it's the size of my computer and can lift about 30lbs so I don't know if that would have an effect on anything else.

I use 2 old magnets coming from a couple of broken computer speakers. Some tape as an extra safety and i'm done :)

ASH8, you've convinced me but, but you really do push the Filtermag's. Has someone bought shares :)???

HA HA, no shares... just a good idea, when you cut your oil filter open and see what is circulating around in your oil..

Yeah I put two by the oil pan drain plug. But if you put them on the pan, you cannot remove them or you will have a chunk of metal shavings floating around in your pan. At least if they are near the drain plug they should flow out with the oil (I hope).

Yeah I put two by the oil pan drain plug. But if you put them on the pan, you cannot remove them or you will have a chunk of metal shavings floating around in your pan. At least if they are near the drain plug they should flow out with the oil (I hope).

Not if the magnetic charge has been passed onto the metal shavings.

What about a magnetic drain plug? Or do we already have one of those?

Magnetic drain plugs work but the surface area is small.

I duct taped a couple of hard drive magnets to my oil filter. The only thing I would like to do different is to the magnets themselves. They are glued (epoxy ?) to a metal bracket and I would like to separate them for a more convenient installation. If someone knows an easy way to do that, could you post it.


They're fairly brittle and will rust if the chrome is removed. However, I've found two ways that are successful at removing the magnets from the backer plates without breaking into 2-3 pieces 50% of the time.

First, put the magnet on a vice. Open the vise up so that only tips of backing plate rests on them. Make sure the magnet is facing down. Tap firmly with a hammer. Ball head or similar shape to put the force squarely in the middle of the backing plate.

Second, get a chisel. Use a vise to hold the magnet by the backing plate so that it sits vertical with the magnet facing one of the gripping faces of the vise but not actually being gripped by the vise (only the backing plate should be held by the vise). Put the chisel tip at the junction between the magnet and backing plate. Tap gently with a hammer.

I just used a razor blade and tapped it in between the magnet and the backing plate. Took two seconds. The SCSI drives magnets were a tad bit harder but not much.

Not if the magnetic charge has been passed onto the metal shavings.

What about a magnetic drain plug? Or do we already have one of those?

If I can answer this question for you.

As I said before there is No magnetic anything associated with the Series I RX-8 Engine oil.

No Magnetic Sump Drain Plug and NO magnet inside the sump.

Yes you can buy an aftermarket Sump Drain plug with a magnet, but the "catch" area is very small.

With Strong Magnet (s) on your steel OIL Filter case you can remove the "particle collection" when you change your oil filter.

The only Factory Drain Plug Magnets are on your Differential and Manual Gearbox plugs.

I just wanted to inform ALL RX-8 owners that IMO this is a critical MOD or ADD on which will help to save your engine and keep your engine OIL from circulating minute metal particles around your engine below 25 microns...your Oil Filter CAN NOT Catch these.

Considering the Series I RX-8's 04-08 have NO factory installed Sump Magnet like the FC RX-7, and Mazda have re-introduced this same sump magnet in the 09 RX-8's....I would ask...WHY????

IT IS A SMALL PRICE TO PAY TO HELP YOUR RENNY'S ENGINE...
PLEASE JUST DO IT!!

ok, ok!

kinda been thinking about it but it is expensive at superautobacs... and novv its closed dovvn...

it seems anything to keep oil clean in a rotary is pretty vital as vve inject oil from our crankcase... i personally don't see y not?

the minute job it ACTUALLY does may not be significant... but it sure can make a easier path for the oil metering nozzles!

good vvork ash.

but is there any ordinary parts store that may carry that, like a pepboys or autozone?

If oil goes in the outer holes of the oil filter and out of the inner hole, then the magnets are pulling metal from the oil before it goes through the paper filter. So how much much of what is seen in the opened filters would have been caught in the filter anyway? I am guess most of it. This is the long way of me questioning how much this mod is really doing.

Of course i bought one anyway. Anything for my 8!

Generally an oil filter paper will not catch anything below 25 microns, so the magnet(s) are catching CRAP below this size, naturally it will only catch/attract metals that is near or in the vicinity of the magnets, so if oil is circulating around the other side of filter case???...well, leave that to the imagination....catch it next time around??

In some way it is helping to keep filter paper cleaner I guess because it is trapping CRAP before it is filtered.

I know when I took my oil filter apart after only 1000 miles (memory) the CRAP was like a ultra fine black paste.

So it has to help in keeping your oil cleaner for longer??

Put it this way, I would rather have it on than not at all..:)

http://www.shopfiltermag.com/tech.php#technology

They now have one for $38 and one for $56 120# for our cars.

Paging ASH8, you are are needed to the newb doesn't know how to search thread.















Just kidding dude but there is an in depth thread about this. :)

Just reading it - sweet. i had read reference to the S2 magnet, and just jumped a bit to fast when i found this. I'll probably try the hard drive mod first since I have one sitting downstairs. :)

Personally I use hard rive mags but when I run out of extra drives I will buy a filtermag.

Those things are only good as a bracelet as it prevents decieces

Just buy 10 of these
http://www.kjmagnetics.com/proddetail.asp?prod=BY042SH

Good find, you think this will fit around the drain bolt?
http://www.kjmagnetics.com/prodimages/RX4C2L.jpg

These are pricey but cool.
http://www.kjmagnetics.com/prodimages/AX2C45SL.jpg

How about this stronger FilterMag: 120 LBS OF MAGNETIC PULL FORCE $56.95

I don't know it might affect parts of the filter.

That is a good idea for the S1

Good find, you think this will fit around the drain bolt?
http://www.kjmagnetics.com/prodimages/RX4C2L.jpg

These are pricey but cool.
http://www.kjmagnetics.com/prodimages/AX2C45SL.jpg

Just reading it - sweet. i had read reference to the S2 magnet, and just jumped a bit to fast when i found this.

If you've realized that you've made a superfluous thread, you can delete the first post in the thread and the thread will disappear.

....or I could just roll this thread in with all the 'other' Filtermag threads.

Thanks for merging this. I think the other sources of magnets is a helpful addition!

I am dropping my pan soon for the RE-medy Oil Pressure kit. I currently have SCSI Hard Drive magnets in a circle around the drain plug and on the filter.

I am thinking of putting some magnets in the pan itself but do you guy know if the coating if the magnet itself would come off and possibly affect anything?

^ Sounds like a very bad idea to me. What if they came dislodged in an accident or pot hole?

I am dropping my pan soon for the RE-medy Oil Pressure kit. I currently have SCSI Hard Drive magnets in a circle around the drain plug and on the filter.

I am thinking of putting some magnets in the pan itself but do you guy know if the coating if the magnet itself would come off and possibly affect anything?

You could install the Genuine Mazda Magnet from a Dealer... # F401-17-121

http://www.trademotion.com/partlocator/index.cfm?action=searchCatalogOEM&siteid=214264

This one is fixed onto the Oil Pan (INTERNALLY) on a mini pole (part of the oil pan) which locks the magnet through it's center.

^ Sounds like a very bad idea to me. What if they came dislodged in an accident or pot hole?

Impossible, the SCSI mags I use now have to be removed with a flat head screwdriver when on the oil pan. They are very, very strong.

You could install the Genuine Mazda Magnet from a Dealer... # F401-17-121

http://www.trademotion.com/partlocator/index.cfm?action=searchCatalogOEM&siteid=214264

This one is fixed onto the Oil Pan (INTERNALLY) on a mini pole (part of the oil pan) which locks the magnet through it's center.

Link doesn't work but I will look up the part number. Thanks!!!!

I am dropping my pan soon for the RE-medy Oil Pressure kit. I currently have SCSI Hard Drive magnets in a circle around the drain plug and on the filter.

I am thinking of putting some magnets in the pan itself but do you guy know if the coating if the magnet itself would come off and possibly affect anything?

The chrome plating on these type of magnets is very thin. I've had a couple where the plating came off when I removed them from the drive, from having been glued into place. Once exposed, the material of the magnet is porous and rusts easily and the remaining plating is brittle and chips away. Since the plating is not magnetic, it doesn't stay with the magnet once it chips off.

The Mazda internal Pan Magnet is not a chrome plated type (AFAIK) but a composite type like their Transmission Drain Plug magnets... black/Grey in color.

9K, The Link works for me, you have to "select make" in the drop down...to 'Mazda' and then type in the part number..no dashes.. F40117121...then hit search..

Thanks I found it :) The shipping is as much as the part so I will call the dealer tomorrow and see what hey can get it for.

btw they now have an RA250 which is twice the pull if anyone is interested they upgraded the magnets in it.

btw they now have an RA250 which is twice the pull if anyone is interested they upgraded the magnets in it.

They have changed the name from HP250 to RA250, both have the plastic orange backing..

BE CAREFUL the HP or RA's will NOT Fit on Series 2 RX-8 (different oil filter location), unless you pull the backing off and only use the magnets.....

You can "Just" get away with the install of a SS250 on a Series 2 RX-8.

Series 1's will take all the HP, RA or SS250 magnets.

http://www.m7japan.com/m7-product-cooling-oil-filter.html

$20!!! US for an OIL Filter, I will stick to the $5 OEM and a Reusable FilterMag which does the same thing..