I like the K&N myself...

But seriously, so a search...
https://www.rx7club.com/1st-generation-specific-1979-1985-18/what-kind-oil-filter-do-you-use-56161/
http://minimopar.knizefamily.net/oilfilterstudy.html

 

Ive always run K&N on my cars,but all our work trucks and equipment get Napa Gold.Every mechanic and shop in our area uses Napa Gold.They are good stuff......

 

I use K&N on all my cars.

 

Right now I'm using two 1qt. full-flow Amsoil filters with a K/N in the stock filter location. Remember, the stock oil filter only filters the oil that goes to the engine, the rest goes unfiltered back to the pan.

 

purolator baby!

 

The oil filter study showed a lot of work. What is more important is the particle removal effectiveness over time. How small does a particle have to be inorder to be benign.?

Does more filter area equal more effectiveness if the filter media is crammed into the same volume?

Also a filter's particle removal efficiency improves with time. Micro pores gradually clog enabling them to catch more , finer particles. I learned this in Chemical Engineering Unit Ops Lab.

If the filter media is to fine, molecular shear happens. This is a concern with filterring photo resist used in deep sub micron semiconductor manufacturing.

That e-mail from the Allied Signal Engineer sounds like it was from a disgruntled employee. He states that there are no quality controls where he works. I haven't noticed the ISO 9001 or 9003 (better yet) stamp on any oil filter. Being ISO 9000 qualified only assures that written proceedures are followed. Quality control charts, and monitorring the right thing are still open to question. Eg, Firestone Tires passed a quality control plan right before the Ford Bronco Tire fiasco.

What I liked about that oil filter study is that it pressures ( neat pun?) companies with other things than cost cutting, profit, EEOC, NAACP, EPA, AQMD (only cali).

For the record, my last engine lasted 220,000 miles. I changed the oil every other month, used a new Fram filter each time. And since I seeing particles at the bottom of a Pennzoil oil can that I cut open to use as a funnel, I only use Castol.

 

[QUOTE=Paradox]

if you have to seriously worry about a oil filter you may have more intense problems.


More intense problems? You might have something there. Let's see now...

I'm happily married, I get to work on aircraft for a living, can still get it up and have a very satisfying sex life with an oriental hottie wife (even though I'm overweight and on the north side of 40), no kids, two incomes, two well-maintained and reliable RX7s. Yup, I got me some serious problems all right.



i've never had problems with NAPA gold filters.

Neither have I. Napa Gold are Wix filters, as are Napa Silvers. Both are excellent filters. But the silver costs less.

Frequent oil changes are far more important IMO.

Important, yes. And most of the el-cheapo Fram filters installed would give you no problems at all. It's just that occasional one that fails and sheds its glue and cardboard, which plugs vital oil passages that throws a monkey wrench into even the most diligent and meticulous maintenance schedule that I have a problem with. I think I'll continue to spring for the extra couple of bucks for a quality filter.

 

The Mazda filters sold in the states may be Wix, but the ones sold here in Canada are $5 Frams painted blue and sold for $10.

 

One quick note. The Rx-4 filter is taller, much taller, which means more filter area. I can get you the purolator number if need be. Seems like theres alot of changes in this end of the business, so keep up to date. Also, those rare earth magnets that stick to the filter probably do more than we think. Not the cheapies, the good ones.

 

I use the K&N filter, the socket attachment is a good thing

 

and.......HELLO to everyone, im a nOOb here..I'll have some pics of my 84' GSL-SE up at some point

 

I use pureoilater pure one filters

 

Welcome t the forum!

 

Welcome aboard, and looking forward to seeing this SE of yours. Decent ones are very much sought after and getting harder to find in original pristine condition. I want one.

 

[b]wix Filter Is Very Hard To Beat. It Is Like A Hummer H1. Go To There Site And Check It Out. Send A Reply Back And Tell Me What You Think.
I Pesonally Use The Product. A Close High School Budy Of Mine Went To The Company To Learn About The Product And After Hearing His Experience I Dont Worry About Oil Filters Any More. They Are Spendy.

 

Thanks for the welcomes..as for my SE's condition it needs a paint job..can't complain its the original paint..the interior is it's strong point..it's in excellent shape..original engine and drivetrain 136,000 miles..the only mod to it is a set of Konig Monsoon rims with 205/50-15 Toyo Proxes 4's..it is going to recieve much of my take home pay this coming summer 2006 ..I purchased it off an elderly gentlemen who participated at the autocross we have here..$800..he had a condition..I had to fix it up and autocross by next year..not sure what would happen if I didn't do it
cheers!

 

What about Bosch filters - they any good? - cause I've been using them as an upgrade from the crappy Frams.

 

I've been using nothing but Purolator PureONE oil filters since I read this article the first time. I even drive to the USA twice a year to buy 'em. I stock up on them here at home. I've got like four right now.

The only thing in the article that stopped the PureONE from getting a perfect rating was the guy's worry that it could cause pressure build-up. Since I have an oil pressure gauge (we all do), I figured I'd try one and see. IF my oil pressure changed, it wasn't big enough to read on the gauge, so that's good enough for me.

More filter element, better filter element, anti-drainback valve (especially important in our cars where the filter is mounted right-side-up like that) and better construction make it my filter of choice. The fact that the colour doesn't clash with my engine bay doesn't hurt either.

There are some things I never skimp on:

1. Spark plugs
2. Oil Filters
3. Avoiding replacement of the fuel filter (I buy the el-cheapo one, but I replace it once a year).

In the case of #1 a search on this forum will reveal two suspected cases of Autolite plugs blowing engines. Thanks, but no thanks. NGK is what mazda recommends, and NGK is what I use.

For Oil Filters, I read that article three times. For the extra few bucks, (I think *maybe* twenty CDN a year, with the three or four oil changes I do) it's worth the knowledge that my filter won't fall apart and my car isn't deprived of oil any longer than it has to be on startup.

The PureONE is also a bigger canister than some of the others, so it isn't "more filter in the same area", they left it ample room. It's like double the size of the mazda one.

Carl - if you can get me the part number for the Purolator PureONE for the Rx4 I would be forever greatful. At the very least:
Bigger filter = more oil capacity
More oil capacity = more oil cooling capacity as the oil acts as a heatsink right in the heart of the engine.

Never, ever, EVER will I go with crappy stuff again. My g/f's echo can have a Penzoil/Fram filter because it's on lease, under warranty and we get it changed at one of those Penzoil quicklube places. But my 7, never.

Jon

 

3 pages on what??? an oil filter. this is very entertaining.

 

Same here, after I read the study, the Purolator become my choice and I switched it on the last oil change.

That number for the rx4 filter would be nice. Back in the 80s and early 90s the filters for the 12a was a much larger than the ones being sold now. The old fram I took off was about 1.5 inches taller and bit larger in diameter than the new puroone I put on. Maybe the rx4 filter is the answer.

This is an excellent topic, BTW.

 

http://www.geocities.com/MotorCity/S...iltertech.html

The facts supporting everyone's hatred of Fram Oil Filters seem to be their low price and their 200 sq inch filter area.

http://forums.nasioc.com/forums/showthread.php?t=110317

"I remember several years ago Consumer Reports did an oil filter test. Guess which one was the clear winner? Fram! Now unless Fram has been bought out and moved to China and changed their specs I would expect that they're still decent."

Also drivers of other cars seem to be just as oil filter retentive as we are.

 

I just picked up a K&N filter at Autozone, I was pretty surprised to find it there but got lucky I guess...

 

External mount + 5.0 mustang filter. (No longer using the pictured FRAM)

 

Is that a full flow oil filter? Or the same as stock? I can't see how you have the oil lines run. Looks nice though. And yes get rid of that fram!

 

This is a old picture but you can see my dual full flow oil filters. I as well have gotten rid of the fram filters.