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Renesis OIL PRESSURE Discussion with Dealer Tech

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Old 09-30-2009, 01:27 PM
  #51  
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TX

Originally Posted by ASH8
Adjustable Open Ended Spanner...

Your gonna kill me but what is this ^
Old 09-30-2009, 01:30 PM
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Didn't we already go through a lot of this in the last extensive oil thread with the article? Higher pressure when measuring through the gauges is not necessarily better or means that you get more lubrication. Higher pressure will also result from using thicker oil and that is not necessarily good. We've been through this, the only pressure I see relevant to assisting the car is:

- keeping it close to the specs
- making sure it's not 5w-20 fail sauce
- monitoring it and comparing pressure overtime at the same RPM using the same and perhaps different oils
- Using the AP to bump the OMP pressure up (which is the real significant pressure issue IMO) to feed the seals more oil contrast to stock

Keep in mind this reply is mainly for the cloud surrounding the oil related to pressure comments again, not the pressure boost in the Gen 2 motors.

Last edited by Vlaze; 09-30-2009 at 01:34 PM.
Old 09-30-2009, 01:33 PM
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Higher pressure will also result from using thicker oil and that is not necessarily good.
Yes but generally thicker oil does not get where it's supposed too fast enough or efficient enough.

This is why I would like to see specific oil data instead of looking at bottle numbers.
Old 09-30-2009, 01:42 PM
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Old 09-30-2009, 01:45 PM
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AHHHHHHHHHAAAAAAAAA, a Crescent Wrench,
Old 09-30-2009, 01:48 PM
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The purpose of this thread is to talk about Why we are seeing so many Bearing failures when it is virtually non existent in earlier rotaries with similar miles, the only thing that has changes are engine oils in the past 40 years....and higher RPM.

Come to your own conclusions....MOP has nothing to do with OP.
Old 09-30-2009, 01:52 PM
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LOL!!! I was thinking a spanner was something that spanned the distance between 2 objects! Silly Australians!
Old 09-30-2009, 01:59 PM
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u all nubs.

Spanner = Crescent Wrench.

Is it bcuz I used to study "British" English so I know ? ...
Old 09-30-2009, 02:04 PM
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Old 09-30-2009, 02:34 PM
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good info. subscribed...
Old 09-30-2009, 02:44 PM
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Here is another one for you Silly Americans!...

What do you think is the percentage of Engine Oil Left behind when you do a normal drain?

I will be back with the Answer after this COMMERCIAL BREAK!
Old 09-30-2009, 02:48 PM
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[embed]<object width="425" height="344"><param name="movie" value="http://www.youtube.com/v/4GSfJJvdMj8&hl=en&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/4GSfJJvdMj8&hl=en&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="425" height="344"></embed></object>[/embed]

:thumbtwiddle:
Old 09-30-2009, 02:50 PM
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Originally Posted by ash8
here is another one for you silly americans!...

What do you think is the percentage of engine oil left behind when you do a normal drain?

i will be back with the answer after this commercial break!
40-50%
Old 09-30-2009, 02:59 PM
  #64  
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In Litres because that is what WE Silly Australian's use not the OLD antiquated Weights and Measures..

Series I RENESIS 6 port.
Bone Dry Engine.....6.4 litres Engine Oil to fill.
Normal Drain...........3.3 Litres, 3.5 with Oil Filter

SO You are leaving almost 50% of old dirty oil in your engine...

Series II RENESIS 6 Port.
Bone Dry Engine.......7.0 Litres Engine oil to fill.
Normal Drain..............4.2 Litres, 4.4 with Oil Filter

Slightly better ratio, but not great...

This is why I do a Double Change....Drain, Fill with New oil, run engine till Hot, Drain and Re-Fill...I use a good quality Mineral, so my cost is about the same as if I used Synthetic Oil.
Old 09-30-2009, 03:03 PM
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Great Commercial Break!.....
Old 09-30-2009, 03:08 PM
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Originally Posted by ASH8
In Litres because that is what WE Silly Australian's use not the OLD antiquated Weights and Measures..

Series I RENESIS 6 port.
Bone Dry Engine.....6.4 litres Engine Oil to fill.
Normal Drain...........3.3 Litres, 3.5 with Oil Filter

SO You are leaving almost 50% of old dirty oil in your engine...

Series II RENESIS 6 Port.
Bone Dry Engine.......7.0 Litres Engine oil to fill.
Normal Drain..............4.2 Litres, 4.4 with Oil Filter

Slightly better ratio, but not great...

This is why I do a Double Change....Drain, Fill with New oil, run engine till Hot, Drain and Re-Fill...I use a good quality Mineral, so my cost is about the same as if I used Synthetic Oil.
A double change is great if you feel that your oil is extremely dirty. However, if the oil doesn't look like crap, and you do your oil changes on a 3k schedule, a complete flush isn't really necessary.

I wouldn't mind doing a complete flush every 9-15k miles or so, but I just recently did my first oil change (@2900 miles). I may change my opinion on the flush depending on my next oil change (@~6000 miles).
Old 09-30-2009, 03:09 PM
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What commercial break? u mean this ?

http://www.youtube.com/watch?v=Yu_moia-oVI
Old 09-30-2009, 03:11 PM
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With 1L being 1.05Q, we can assume they are basically the same for now. Where all is the oil hung up in the engine? I get ~4.2q(L) out every change, and being ~half a quart low on the dipstick, but then I jack up each side for the oil coolers. So if I topped off before draining, I would be draining almost 5Q(L)....where is the rest?


^noone clicks links any more. Gotta be more stealthy than that
Old 09-30-2009, 03:12 PM
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Originally Posted by nycgps
What commercial break? u mean this ?

http://www.youtube.com/watch?v=Yu_moia-oVI
AHHH, the gay 80's...
Old 09-30-2009, 03:13 PM
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Originally Posted by ASH8
AHHH, the gay 80's...
HEY ! HAVE A LITTLE RESPECT THERE ALRIGHT !

Rick'roll' FTMFW LOL !
Old 09-30-2009, 03:17 PM
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Originally Posted by RIWWP
With 1L being 1.05Q, we can assume they are basically the same for now. Where all is the oil hung up in the engine? I get ~4.2q(L) out every change, and being ~half a quart low on the dipstick, but then I jack up each side for the oil coolers. So if I topped off before draining, I would be draining almost 5Q(L)....where is the rest?


^noone clicks links any more. Gotta be more stealthy than that
Figures are from the factory...Mazda..

Where is the oil??, is lying in the eccentric shaft (not much), in the oil pump, not much, in the Oil Coolers (2) and lines...MUCH.
Old 09-30-2009, 03:29 PM
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Originally Posted by nycgps
HEY ! HAVE A LITTLE RESPECT THERE ALRIGHT !

Rick'roll' FTMFW LOL !
I bet you have that YT Link "bookmarked'????
Old 09-30-2009, 04:29 PM
  #73  
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Originally Posted by ASH8
Yep, I am not that keen on 0W oils but RP is a good product, so is Idemitsu...u are fine.

I forgot to add the issues can also be a too long a period in engine oil changes, low level of engine oil and no baffles in the sump pan, which are being installed on the re-man engines in the US.
no baffles in US reman engines????????

Originally Posted by ASH8
I am not exactly sure of where they 'reference' this value from, I am going by what the Factory Services Highlights say..

IMO...I think it is an area or location that a reference pressure is read, but, where do they read it?, at the bearings , half way down the eccentric shaft, if any of this is possible, or is it an AVERAGE of a few areas?

So in the case of your S1 Renny...you have..

OP Reference Value @3000 RPM 100c of 50.8 PSI
OP at Oil PUMP Relief Valve Opening Pressure 64-71 PSI
OP at Oil Filter By Pass 11.4 - 17.1 PSI

Sorry, no more info there.
I believe the reference pressure is taken at the location of the oil pressure switch (change it out for a pressure gauge)

Regards.

Last edited by secret8gent; 09-30-2009 at 04:30 PM. Reason: for s1 engines
Old 09-30-2009, 09:22 PM
  #74  
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Cool.
Old 09-30-2009, 09:41 PM
  #75  
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Originally Posted by ASH8

In other words the ONLY thing that has changed in NA rotaries over the past 38 years is the Engine OIL...Not the Oil Pressure (Leaving out S2 RX-8), not the Oil Filter Valves, not the By Pass Valves.

You don't think the oil passages, bearing clearances, etc. haven't changed in 38 years? :rhetoricalquestion:


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