Mazda does not recommend synthetic oil for RX-8
04-24-2006, 01:53 AM
#29
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hey all, i'm confining my responses to the rx-8 "General Topics, RX-8 Discussions" forum thread, so as not to go back and forth between the two forums.
time to go to bed for me!
time to go to bed for me!
04-24-2006, 01:55 AM
#30
幹他媽!
i tend to agree w/ roto and think that following the manufacturer's owner's manual is generally the sensible way to go. that said, everyone should just use whatever oil they feel comfortable with. 'cuz honestly, do you REALLY give a rat's *** what other people put in their engines anyways? it's not like it affects your car in any way, shape, or manner... <LOL>
04-24-2006, 01:58 AM
#31
the giant tastetickles
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Originally Posted by Detrich
i tend to agree w/ roto and think that following the manufacturer's owner's manual is generally the sensible way to go. that said, everyone should just use whatever oil they feel comfortable with. 'cuz honestly, do you REALLY give a rat's *** what other people put in their engines anyways? it's not like it affects your car in any way, shape, or manner... <LOL>
04-24-2006, 08:19 AM
#33
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Originally Posted by yiksing
I'm not sure what you are getting at?
Last edited by Skythe; 04-24-2006 at 08:25 AM. Reason: necessary punctuation
04-24-2006, 08:24 AM
#35
Senor Carnegrande
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Somewhere out there, there must have been extensive peer-reviewed research dealing with the fact that A) synthetic oil burns cleaner, and B) while it's boiling point IS higher than conventional oils, it is far below the temperatures encountered in a combustion chamber, and thus can quite easily be burned. Those are pretty much accepted scientific facts, I just wish there was a scanned copy to refer to.
If synth. oil were totally impervious to being burned in an engine, then it would gum up piston engines too, not just rotaries.
If synth. oil were totally impervious to being burned in an engine, then it would gum up piston engines too, not just rotaries.
04-24-2006, 08:33 AM
#38
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Originally Posted by yiksing
Ok Skythe, I'm not from US and English is my third or fourth language so I really don't understand... :-)
PS. All of the aforementioned posts are South Park references. forgive me for not being social conscience to your funny bone.
04-24-2006, 08:41 AM
#40
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Originally Posted by rotarygod
Why are you guys so damn persistent when it comes to this topic? Someone has to start a new thread on this every other day. It's getting old and the non believers plain and simple don't get it! I'm just going to start shutting these threads down. There is absolutely nothing wrong with synthetic oil in the rotary engine. Tons of real world experience proves this both from Mazda themselves and many synthetic users over many years. The only thing you guys can come up with to say otherwise is a brochure. Many of us have actual results with it. You can not beat that. Sorry. Give it up. I don't see anyone listening to the manual, brochures, etc, when it comes to using only genuine Mazda parts installed by Mazda techs. Why not? That must mean that intakes, exhausts, etc are bad for the car. Mazda would have you only purchase oil through them and air filters through them. They'd have you replace your cat only with a factory one. They'd have you only use their mufflers. They don't want you to use aftermarket parts of any kind. See the trend? Why do so many people listen to Mazda but at the same time not listen to Mazda?
The problem is that people think that synthetic oil is some sort of magic substance, or at a minimum, completely different chemically from dino oil. This is complete bullocks of course. Never has there been a written statement fom Mazda that says WHY they dont recommend syn. So everyone has to make up their own BS theories to fill this knowledge gap. This phenominon occurs in other places in our daily life, but because it is arguably political in nature, I wont give examples.
This is not the same thing as filling your brake system with DOT 5.1 when you should use DOT 5.
Besides, how many times have MAJOR experts with REAL LIFE experience have to weigh in before you can listen? (I am refering to the sevenstock discussions)
04-24-2006, 09:06 AM
#42
Metatron
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Gun-shy.....
Mazda is a little gun-shy from people using oil they didn't test....
I owned one of the first rotaries, a 1972 RX-3, and I (at incredible expense) used the first version of Mobil1 synthetic in it. Within three months the big 'O' rings had dissolved and it was drinking antifreeze, and getting expensive. The dealer swapped out the engine, which was taken for analysis.
Shortly after, Mazda started to warn owners not to use any synthetic oil, and later changed the 'O' rings (to a Viton rubber, IIRC).
So, blame me
, but the new 'O' ring composition cured the problem.
There never was a concern from Mazda with synthetic "not burning" or "contaminating the catalyst", in fact early rotaries never even had cats, they used the thermal reactor system.
The Idemitsu Rotary oil used in the LeMans winning 4-rotor, is fully synthetic, and proud of it.
S
I owned one of the first rotaries, a 1972 RX-3, and I (at incredible expense) used the first version of Mobil1 synthetic in it. Within three months the big 'O' rings had dissolved and it was drinking antifreeze, and getting expensive. The dealer swapped out the engine, which was taken for analysis.
Shortly after, Mazda started to warn owners not to use any synthetic oil, and later changed the 'O' rings (to a Viton rubber, IIRC).
So, blame me
, but the new 'O' ring composition cured the problem.There never was a concern from Mazda with synthetic "not burning" or "contaminating the catalyst", in fact early rotaries never even had cats, they used the thermal reactor system.
The Idemitsu Rotary oil used in the LeMans winning 4-rotor, is fully synthetic, and proud of it.
S
04-24-2006, 04:47 PM
#43
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Originally Posted by Rotor Rocket
gomez got the brochure also. i told mazda rep that mine was an '04. that's what they sent me. It doesn't say to use only mazda oil, just not to use synthetic and check to see if ILSAC rated. I was told this by my dealer mechanic when i got the car, and I've saved all the receipts from my local auto parts store showing my purchase of non-synthetic oil (Penzoil 5w-20, in my case) and my receipts from the dealer showing my timely purchase of the factory oil filter, (my choice) all for the purpose of providing proof of my maintaining the car in the event of warranty issues. I don't wish to pursue this issue further, as i always thought that the manufacture's advice was the best to go with, and that's where i stand. Why would they say otherwise?
The Owner's Manual is where the maintenance requirements are spelled out. The "tips" brochure is more of a sales tool. You're not going to get a voided warranty for not following the "pocket tips".
04-24-2006, 07:37 PM
#44
this is the latest stuff that i consider credible on the subject...
took me a while to find it, but here you go... btw, thx rotarygod.
https://www.rx8club.com/showpost.php...0&postcount=64
https://www.rx8club.com/showpost.php...2&postcount=74
beers
took me a while to find it, but here you go... btw, thx rotarygod.
https://www.rx8club.com/showpost.php...0&postcount=64
https://www.rx8club.com/showpost.php...2&postcount=74
beers
04-25-2006, 01:09 AM
#45
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swope,
I saw your post in the rx8 tech garage forum. You quoted a post from rotary god dated 2005. I have told you that i got this info from mazda 2 years ago, 2004.
I qoute from RG's post.
"Now onto Mazda's position on synthetics since I know that the opinion of the smartest rotary person in the U.S. isn't good enough for some people. As I stated earlier, I asked the head of rotary engine development for the past 30 years at Mazda. He designed and built the 787B engine too. In very broken english he told me that not all synthetics are created equal. some are better than others when it comes to mixing with fuel in the oil metering system. The oil metering system is the key. It is NOT with swelling seals. He said that because some oils work very well and others not as well, it is far easier to just officially say not to use them than to say which ones to use and not to"
My statement said exactly the same thing.
I quote
"in speaking with the powers that be at mazda U.S.about two years ago re synthetic oil, that person told me that the last time Mazda tested synthetic oils, they encountered problems as i described earlier. Based on the fact that at the time of our conversation, mazda had not tested the current crop of synthetics, they felt it appropriate not to recommend synthetics. I was told that if they get around to testing again, that if things were to change, they would make mention of that fact. i guess that mazda has not done tests since my conversation, and that accounts for why they aren't recommending synthetics in their current booklets.Everyone can use what they want. i go with what is published in the factory booklets/updates until i read different."
So here's the point swope:
I got this stuff two years ago, and it's from a higher up than RG's source, but, I never treated anyone in this forum in the manner that you have . You also, RG.
Case closed!
I saw your post in the rx8 tech garage forum. You quoted a post from rotary god dated 2005. I have told you that i got this info from mazda 2 years ago, 2004.
I qoute from RG's post.
"Now onto Mazda's position on synthetics since I know that the opinion of the smartest rotary person in the U.S. isn't good enough for some people. As I stated earlier, I asked the head of rotary engine development for the past 30 years at Mazda. He designed and built the 787B engine too. In very broken english he told me that not all synthetics are created equal. some are better than others when it comes to mixing with fuel in the oil metering system. The oil metering system is the key. It is NOT with swelling seals. He said that because some oils work very well and others not as well, it is far easier to just officially say not to use them than to say which ones to use and not to"
My statement said exactly the same thing.
I quote
"in speaking with the powers that be at mazda U.S.about two years ago re synthetic oil, that person told me that the last time Mazda tested synthetic oils, they encountered problems as i described earlier. Based on the fact that at the time of our conversation, mazda had not tested the current crop of synthetics, they felt it appropriate not to recommend synthetics. I was told that if they get around to testing again, that if things were to change, they would make mention of that fact. i guess that mazda has not done tests since my conversation, and that accounts for why they aren't recommending synthetics in their current booklets.Everyone can use what they want. i go with what is published in the factory booklets/updates until i read different."
So here's the point swope:
I got this stuff two years ago, and it's from a higher up than RG's source, but, I never treated anyone in this forum in the manner that you have . You also, RG.
Case closed!
04-25-2006, 01:50 AM
#46
you might have been treated better if your info was correct... and you did not post it twice...
i would love to know who your source higher up than rg that was wrong...
i just filled in the facts, you just stated stuff that was 2 years old...
if that makes me the bad guy i am ok with that...
btw, as to case closed... it should have never been opened... ill informed people like you spew this stuff and the next thing you know the sky is falling...
did you read one thread about syn oil on this forum before you posted???? i have no issue with the sales flyer, that is what it is.. but your mazda buddy from 2 years ago...
beers
i would love to know who your source higher up than rg that was wrong...
i just filled in the facts, you just stated stuff that was 2 years old...
if that makes me the bad guy i am ok with that...
btw, as to case closed... it should have never been opened... ill informed people like you spew this stuff and the next thing you know the sky is falling...
did you read one thread about syn oil on this forum before you posted???? i have no issue with the sales flyer, that is what it is.. but your mazda buddy from 2 years ago...
beers
Last edited by swoope; 04-25-2006 at 01:53 AM.
04-29-2006, 11:09 PM
#49
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Here in Japan I'm using REsuperG 0W-30 synthetic from RE-Amemiya. The Japanese instruction manual recommends the use of 0W-20 oil, and doesn't mention mineral or synthetic. The dealer here uses SYNTHETIC 5W-30. They use the same oil for all Mazda cars, piston and rotary. They have never heard of Mazda Rotary Oil. It isn't in their parts list. Wow.
Incidently, I also have the instruction manual for Europe, Australia & New Zealand. This manual gives no specific viscosity recommendation, it simply gives a table detailing viscosity VS ambient temp. Again, no mention of mineral V synth. Go Figure.
Incidently, I also have the instruction manual for Europe, Australia & New Zealand. This manual gives no specific viscosity recommendation, it simply gives a table detailing viscosity VS ambient temp. Again, no mention of mineral V synth. Go Figure.
04-30-2006, 01:40 AM
#50
The Professor
Originally Posted by Detrich
that does it. i'm putting Bud Light from now on to mix in in my windshield wiper fluid reservoir. will that void my warranty? <LOL>
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