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One day I was bored at work as usual and I remembered I was way past due my 3k oil change. Rather than using the search like I was supposed to, I was just too lazy (maybe its from the food coma at lunch) and started a thread that I knew probably already existed. After a few post I got an earful from Dev about Spyderchat morale standards and blah blah blah. So afterwards I started searching and searching and it was basically peoples recommendations on the big fancy oil filter names. I also a did a little research on this this website http://www.knizefamily.net/minimopar/oilfilters/toyota.html and learned something about it. Maybe the website was way too technical for me but my question was still unanswered. Whats a good oil filter for my spyder?
So I ordered this oil filter cutting tool.

Also went out and bought 9 MR2 Spyder oil filters.

1. TRD $14
2. Fram $7
3. Toyota OEM $8
4. ACDELCO $4
5. STP $5
6. Pennzoil $5
7. K&N $10
8. Mobil1 $10
9. Bosch $6


After opening these oil filters up I noticed that basically some are the same filters that are rebadged. The first 2 are identical. FRAM and Pennzoil. The dreaded cardboard that everyone talks about is holding the paper filter together. The filter material is very dark brown very rough and hard almost like cardboard itself. Yes even these cheapo filters have anti bypass valve. They ALL do.


The next 2 is STP and Acdelco. Again both are identical, but wait STP is made with better paper material which is softer where the AcDelco is similar one on the Fram and Pennzoil.


Here we go with the big boys. Everyones favorite performance oil filters. K&N and Mobil1. Again the are the SAME oil filter with a nut on the K&N for easy removal with a socket. What is so special about these expensive oil filters? I really dont know. Then something caught my eye.


I went back and grabbed the STP filter and compared it to the K&N. Could you find the difference? I cant. The nitrile rubber gaskets are the same just different color. 5 dollar filter and 10 dollar filter are the same.


Here is one of the oil filters Ive always used on my car. Bosch has some what of a different design than the other filter. The anti bypass valve is a coil of metal rather than a spring. Of all the filters Ive opened up, this has the MOST paper fins. The whole material is wrapped tight. I guess Ive made the right choice the filter in my eyes looks very well designed.


Here is the Toyota OEM. The biggest filter in the pack. When set side to side with other filters its about an 1 inch to 1 1/2 taller than the other filters. This by far has the most paper filter on it. The paper is very different from the others. It soft yet dense with volume. It also has a plastic seal seal on it before us. Very fancy!



And finally the TRD. The most expensive filter money can buy on your spyder. The most noticeable element of this filter is the material. The paper material is thick and soft almost like like cotton fabric itself. The anti bypass valve is also internal. TRD advertise that the bypass system is made for high rpm engines and not just for cold starts.



So after opening up all these filters and seeing with my own eyes what did I conclude? Dont buy fram or pennzoil. K&N and Mobil1 is NOT worth the $10. STP is the same thing as the high performance advertise oil fitlers, but at 5 bucks which came out to the biggest oil shocker for me. AcDelco is average maybe less than average. Bosch(Purolator) is a solid design and great for its price. Toyota OEM is a great filter. I bought a case of 10 for 5 bucks each at Twos R Us. You cannot go wrong with oem. TRD for 14 bucks and fancy paper material is unknown to me. Unless I have a crazy rev happy engine I would not spend 14 bucks on an oil filter. Maybe Im just cheap.
If you guys have anymore questions on what else to look for on these filters before I throw them all away feel free to ask away. Hate to throw away 70 bucks in unused oil filters.
 

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Wow! Let me say again - Wow!

Impressive investigation. Thanks a bunch.

Care to comment on the thickness of the walls of the 'can'. I seem to recall a review that said the Mobil 1 was way thicker then the Fram product - not that anyone I know has ever blown a filter open, but...
 

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I applaud you and can say that I could not have done any better.

Many of these filters are made by the same filter houses. See if you can find a Baldwin and a wix filter for testing.

You have now put the theory to facts about the quality of the Denso filters.

Denso is a company that does not skimp on quality.
 

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Amazing!! A big thanks goes out to you spydamite! I too was wondering about the different oil filters out there and had suspected that there were copies of the others. Thank you for putting this one to bed.

Now I'll only be using Bosch Premium Oil filters
 

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Nice job
, but if you still have the filter material around, can you measure it for area(sq-in.) and material thickness? This would be the icing on the delicious cake you've made!!
 

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Discussion Starter #7
Here is the difference on the average paper material vs. the Toyota. The K&N is a single paper and more rough, where the Toyota is a double paper like toilet paper and way more material more dense longer material and does not break down when I was pulling it apart unlike the K&N. Yes Toyota is thicker. K&N is over a 1/4 shorter but started to rip apart thats why I could not stretch it out
 

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Great post, thanks for doing this!



<div class='quotetop'>QUOTE (bossman23780 @ May 26 2008, 11:28 PM) <{POST_SNAPBACK}></div>
It would be good of you to test the Power Enterprise Mag 2 filter.[/b]
If you do, please check the TRD Japan filter too. It looks different to the TRD USA filter.
 

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Nicely done spydamite. I would also like to see a wix filter cut open though. I use only wix filters on my diesel trucks and tractors.
 

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<div class='quotetop'>QUOTE (SpydaMite @ May 26 2008, 05:05 PM) <{POST_SNAPBACK}></div>
Here is the difference on the average paper material vs. the Toyota. The K&N is a single paper and more rough, where the Toyota is a double paper like toilet paper and way more material more dense longer material and does not break down when I was pulling it apart unlike the K&N. Yes Toyota is thicker. K&N is over a 1/4 shorter but started to rip apart thats why I could not stretch it out[/b]
So the shorter K&N paper is close to the average length/area? Wow, what a difference! Could you do that with the Bosch too?

Thank you for that shot!!
 

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Very well done.


How 'bout we don't ask this guy to spend any more of his money for our benefit. Kinda impolite. If you'd like to have another filter tested...I propose you buy it and have it shipped to him.
 

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...oh, and some one actually makes and SELLS an oil filter cutting tool!!?? You've made quite an investment for this study...thank you! Maybe you should have an "Oil filter study" fund raiser.

Seriously, thank you for your investment in $'s & time
 

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Kudos!

Are they all paper "paper" filters, or some form of a polyester? Next logical step would be to see how well they do filter the oil.
 

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<div class='quotetop'>QUOTE (kaustein @ May 26 2008, 02:34 PM) <{POST_SNAPBACK}></div>
Kudos!

Are they all paper "paper" filters, or some form of a polyester? Next logical step would be to see how well they do filter the oil.[/b]
These 8 oil filter were all paper except for the TRD which is the polyester material youre referring to. As you can see when I tried to pull it apart it just fell apart like cotton. There is a mesh inside made of plastic strands. After opening this filter up this seems to be the only high performance filter outta the bunch I opened up.


The Bosch is the same paper material as the rest but is a little shorter than Toyota OEM which which would explain the many fins on it. I dont even wanna open up the FRAM. Majority of the filter is made of cardboard.
 

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I read on the oil guy website that only a couple companies make them. I remember seeing the generic walmart ones (supertech?) were made by wix. I wonder how they stack up or a regular wix filter.
 

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<div class='quotetop'>QUOTE (Joe Schmoe @ May 26 2008, 04:29 PM) <{POST_SNAPBACK}></div>
Very well done.


How 'bout we don't ask this guy to spend any more of his money for our benefit. Kinda impolite. If you'd like to have another filter tested...I propose you buy it and have it shipped to him.[/b]
+1 or paypal the cash to purchase plus expenses
 

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What a great post. Based on other info on this board I had resolved to switch from Mobil 1 to OEM, and ordered a bunch of OEM filters. They arrived last week. I feel even better about the decision now.

Thanks again.
 
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