Most good quality ones should be, I personally stick to genuine or Mazda Approved, I am still under warranty...For S2's you can only buy Genuine, and IMO that will stay that way for a while..

BTW... Off Topic slightly, I have noticed Mazda's New SKY banger engines have a larger looking Oil Filter...which is a Good Move IMO, I really don't like these WEENY SMALL Filters used over the past 20 years, gee the Original Spin off Rotary Filter 0813-23-802 was 4-5 times larger than the S1 RX-8's...

There you are I pulled that number out of my head, that is how much a Parts Guy NEVER Forgets Part Numbers.

That filter went to a 1978 626 one...8173-23-802 about half that size, and that now supersedes to the JEY0-14-3029A, so if you want a larger filter than the Original S1 RX-8 use the JEY0 one, it will fit and filter MORE....TRUST ME...

 

I had to go back to page 13 to see the data again:

Is it suggesting that the front valve in an S1 is relieving at a lower figure than the rear? That would be an error in print I would think. The front is not really supposed to get activated practically ever; it's like an emergency valve. If it were lower than the rear, we wouldn't achieve the pressure to the rear.

My Service Highlights Book says the rear regulator relieves from 78-92.5 psi or more.

Can we safely say that we who are running guages are not seeing strange low figures? I would imagine that most are close to the ratings for 3k rpm.

Paul.

 

sounds pretty straight forward, a possible DIY for it?

 

Ash, JEY0-14-3029A is the Mazda part number but would the aftermarket support this filter? What model, year, etc.?

 

Try 96 MPV or even 95 929.

Paul.

 

What I meant by bypass filter are the ones Ive seen that divert a small percentage of the oil through an extremely fine auxiliary filter. I think AMSOIL is one of the ones that push this sort of thing. Always seemed like snake-oil to me but maybe it makes sense with our cars that never get a clean oil change.

 

Regarding the oil left in the system after an oil change - that's another reason why I'm possibly not seeing any of the bearing damage other people are reporting - the oil cooler and lines on our car are above the engine, so every time the oil is changed, it's a near total swap for fresh.

 

The JEY0 Filter is off the following Mazda's..

94-96 323 Astina BA Model
87-92 626 GD,GE,GV
89-97 929 HC,HD,HE
89-02 B2000,2200,2500,2600 UF,UN
86 E1800,2000,2200 SS,SD,SR
91-91 Eunos/Mazda 30X, MX-3,500,800 EC,CA,TA
93-95 MPV LV
96-20 Xedos-9 TA

 

I still consider there is an Oil Pressure Issue with the Series 1 RENESIS as the Series 2 RENESIS has almost 22 PSI Higher at 3000 RPM and at 100c (212F).

If OP was not an issue then why the higher Engine Oil Pressure...
As I said IMO the S1 could easily manage another 20 PSI.

 

I do not believe this is correct Phillip, many here report extracting more oil from coolers when they lift one side of the car (Oil Cooler) at a time while draining...also the factory stats on the 8's Oil Capacity also shows a lot of oil is left behind....in my S2 the most I get out is just under 4 litres with a drain showing a full Dip Stick...and I do not do the separate side lifts..

See Factory Specs..Series 2 in RED, 1 in Blue

So in my case it is leaving behind around 3 Litres of Old OIL, when compared to a totally dry engine (holds 7 litres), so when I look at the 5.6 litres of Oil Used in an engine overhaul there is still 1.4 litres left behind in the Coolers and Lines.

 

Phillip has a modified oil cooling system, as I know.

 

My Service Highlights Book says the same, and my pressure gauge verifies that the oil pump relief valve (front valve) determines the max pressure in the S1 (71 PSI) as it has lower opening pres., instead of the rear regulator valve (78-92,5 PSI).

I absolutely don't understand why the first valve has a lower opening pressure data in the system. It means, that the second valve (rear regulator) has not got too much part in the S1 system.

 

well dang. Do both--lol
i get more oil out during a change when I use a suction cannister and let it work for a while. I usually get 5 quarts out . Were as on drain per oil plug i only get approx 4. I do not do the jacking.

Oil pressure gauge has arrived and will be installed this w/e.
I will record my findings (using diesel oil) and share and then at some point, as I have a REALLY big track event the following w/e, I will do this mod and record my findings and share.
I have heard that the Fram hp 6 filter will fit ,its much bigger, filters to 12 microns and and has a bypass of 22psi. I am currently running moble 1's that is slightly bigger.
Paul---I will call 1st!!!
OD

 

That fram filter is good, just a pity to remove if you have an oil sandwich down and no oil cup (i have an adjustable oil filter remover...) =)

 

yea I have a remote filter set up makes it nice. See my engine bay.
OD

 

Yes, all my oil lines + cooler are mounted higher than the engine, so I'll be leaving far less old oil in the car on each change.
Also got a huuuuggeee oil cooler.

 

The suggestion that the front valve had a lower setting than the rear got thrown out by Mr Engman. He said there would be a wear pattern visible from it's movement. It's obvious that they never move, even in 04-08 Renesis.

Paul.

 

Am I missing something? If oil is getting bypassed, then it is going back into the pan (unfiltered, but so what?).When it gets picked up again, any oil that finds it's way into the engine must go through the filter first. So it shouldn't matter if bypassed oil isn't getting filtered because it's not getting used for lubrication/cooling. What's the prob, Bob?

 

i know i haven't finished reading this thread in its entirety, but i have to comment on this. you and i can't see more eye to eye on this. it is a step backward. i'm all for technological advancements (if they are reliable), but some of the failures i've read about and even experienced with the engine (and the car itself) could have been prevented if they just kept some things simple until they could discern reliability.



now, i'll go back to reading ...

 

still reading the whole thread, but i just thought this post was too funny (and to an extent, true) to pass up without noting.

 

page 11 - yea!
this is how i thought about it, until i thought of Ford's involvement. now, i have no basis for this, but my thought is that the engineers will have to make concessions to the nickel-and-diming pigs that count the pennies for the final product. not counting extreme situations, clearly our cars will survive a few years before you realized you've been hosed. by then, you've already bought it and they made some money ...

to them short term profits are better than the long-term marred reputation - especially since it's not really their reputation. make the Japanese brand look no better than the American ... means even more profit. win-win situation. it's the way i see it ...

 

The RX-8 will have the reputation and Fecked resale because it will be known as the Mazda that need a new engine every 50K miles, reminds me of 1974 all over again.

Unfortunately, THE issue is Mazda are not rectifying the Problem(s), so even the replacement or re-man engines are going to go the same way.

Having worked for the Brand I can assure you Mazda does care about it's Brand or image, it is/was the Ford influence.

I am almost CERTAIN we are not Going to see the 16X because Mazda are waiting to see how these 09's go out in the field, if similar issue happen again..it will be the END.

I am reasonably confidant they have done the work on 09's, apart from Carbon which has been an issue for over 40 years....just like the Top of a Piston/banger engine, they all get it except the rotor gets it on all sides.

This is why "hydrogen" will be good for the rotary...NO Carbon, No sticking seals..

 

Paul---so the fronts are never opening?
OD

 

It's not supposed to. It's got a setting designed to protect parts if there was a problem like a clogged filter or something else that could be catastrophic.
Under some really adverse condition , it would relieve; like a fuse protecting expensive electrical components.

Paul.

 

Probably why I never sold any Piston/Plungers or springs for the Front relief valve, as they hardly ever worked/moved....nor the rear by pass components for that matter.

The spring and plunger (Rear) are the same used for the early banger engines used in Mazda oil pumps, 0221-14-115 and 0221-14-116, sold quite a few of those.