Onyx57

I think Mazda have said DON"T USE SYNTHETIC or SEMI SYNTHETIC thousands and thousands of times, with every RX8 they sold......check the owner's handbook!! Seems like no one is listening!

plain ole wanker

^ you need to start telling these people 1st
http://www.mazda.co.jp/service/parts...e_renesis.html
http://carview-img02.bmcdn.jp/carlif...1460648/p1.jpg

Onyx57

why? this one only works in Japan and I don't live in Japan.

shaunv74

Brought to you by the same company that now is replacing motors and extending the warranty on the motor to 100K miles due to a design flaw.

meh. It doesn't really matter whether you run synthetic or not as long as you change it often, premix, and run a heavy enough weight to support the e-shaft bearings.

nycgps

iTrader: (1)

I think you should STFU already.

Cuz Mazda has never said "DONT USE SYnthetic", its just not recommend for North America Market in the DVD. Not in the user's manual.

and before you said "Its not recommend" so we should not use it. Mazda also "recommend" you to "perform EVERY SINGLE WORK" at a Mazda dealership. Have you ? I am sure you haven't.

and could you tell me what is the differences between a "Japan" engine and "everywhere else" ?

There is none

and I think you forgot that the car came from Hiroshima, Japan. So in your logic, the car should not work anywhere else. Right ?

Not to mention, Mazda's "Synthetic" oil is just typical re-brand of some oil from another company.

stop wasting time, there is nothing wrong with using Synthetic oil. You can use whatever you want, but mind your own business and stop spreading BS about Synethic Oil causes problem.

StealthTL

iTrader: (1)

I think Mazda have said DON"T USE SYNTHETIC.....

Oh dear.

Now you have angered the Oil Gods and must suffer for it.

Onyx57

interesting I never did any of those things and my engine didn't need replacing, maybe I got the record at 186k? Anyone out there got the same? I guess it was good of Mazda to do that.
I never seen the Mazda synth in US ..or here. Is it available from the dealers or just for the Jap market, ...and just for the revised Renesis (after all the deseign "flaws" were fixed)?

Onyx57

funny that in my owners handbook it is stated quite clearly on pages 8-13, 8-14 and 8-15 NOT to use synthetics or semi synthetics because it will lead to engine starting problems. This is for the 2009 "facelifted" 6AT, I don't have the handbook for my 2002 RX any more, so cannot check the NA spec.
My dealer was quite blunt...he said if you use synthetic "we will not honor the warranty", if anything goes wrong with the engine, period!"
I am not spreading BS, just passing on info from Mazda! Odd that in Japan they are selling fully synthetic for the RX, which is kinda frustrating! When I mentioned this to the SC, they just shrugged their shoulders saying they got no "instructions" from Mazda Japan.
Normally car companies will formulate oils specifically for their engine designs. I remember Isuzu having to to that for their diesels a while back and their EGR problems, similarly Nissan was doing the same with their transmission oils. I don't think they are simple "re-brands" as you call them. The base oils may be common, but the additives are specific to the materials used in the engines for compatibility issues. Maybe the Renesis is that much sensitive to these various additives? When I pressed Mazda here they mentioned "commercial" reasons for not distributing the Mazda synth oil here.
I have to perform "every single work" in the dealership franchise because of the warranty (3 years and just 100k kilometers here). After the warranty period, can go to a "specialist" because no more warranty issues.
Sorry for wasting your time, it's not cool to ask me to STFU on a discussion forum for sharing info, don't you think?

Onyx57

yeah...just lucky I guess, every company makes lemons. I heard that every Renesis engine is hand built by one person from top to toe! Maybe that guy should sign it so we know who to complain about when things go wrong.
I still admire the engineering that has gone into making this car, the engine is really amazing when it's on song and so is the handling. It's not the best by any means, not as good as my basic Porsche for example,... I just think it's so unique and elegant!

nycgps

iTrader: (1)

that's just sad, that simply means all your dealers do is "listen and obey, without a mind of their own"

I wouldn't trust anybody like this to work on my car.


Like I said, if you really listen to Mazda, you should perform ALL WORK at Mazda dealership at all times, Cuz hey, that is what Mazda "recommned"

They're not selling it cuz it doesnt make any sense. Shipping cost alone will kill this product outside of Japan. There is nothing special about this oil, its just another Group IV oil. So of course your local "dealership zealot" not gonna get any instructions from Mazda Japan.

Im not sure about Isuzu. but I know Nissan's GT-R "special" transmission oil. ROFL, that **** is a complete failure. It can't even handle stock use. Some people swap it with some other MT + ATF mix and it actually shows less wear than using stock GT-R fluid. Failed.

Or some people go for WILLALL Racing's Fluid. It protects the GR6 Transmission much better and be able to withstand higher temperatures .

That simply means you dont know jack about this engine.

Check its parts, most of them are the same for the last 20 something years. Search is your friend.

See my reasons above.

Shipping alone will put this "special, already overpriced oil" to a ridiculous price point that no one will buy. Mazda knows it. so this is why its a Japan only thing.

IT doesnt matter, Mazda still recommends you to perform ALL WORK, Warranty or not, at a Mazda dealer.

Why can't you listen ?

If you would stop spreading bs. Cuz obviously you have no clue about how this engine works. and how oil works.

Onyx57

maybe I didn't explain myself...I have to go to the dealer during the warranty period..after that I go elsewhere...hope that makes it understandable to you.

I do know a little bit about this engine, enough to see that it's not like a piston one.

I think you are totally wrong in saying that the parts for this engine are "the same" as they were 20 years ago. Mine was made in 2008 so it cannot be, can it?

I have some knowledge also about oils and how they are formulated, since I am in a related industry distributing oils.

shaunv74

Was that a Renesis motor that you did 186K on? If so that may be the highest mileage renni out there.

If not the Renesis oiling system is different than previous generations, as well as side seal clearance so it's not a good comparision. But they type of oil isn't the problem there either. It's the design of the MOP system, or lack there of. So Premix is really the issue. Not synth vs. dino.

Again. Use what you want. I personally think they don't make a difference, at least not in terms of the performance and life of the engine. It's the weight, premix, and maintenance interval that make a difference IMHO.

Onyx57

It was the 13B MSP.

nycgps

iTrader: (1)

Are we talking about 186K Kilometers or 186K Miles ?

Onyx57

well I used to drive a lot up to Montreal then over to Detroit, Chicago, then over to Cleveland, Columbus and Baltimore, occasionally down to Charlotte so yeah, I put a lot of mileage on that car on highways. I don't remember the dealer making any significant "rebuilds" or changing the engine, I think I would have noticed! Not that I minded since the business paid for all the expenses and service costs. I never "abused" the car, probably drove it too steady! Anyhow, it was a great motor I thought at the time, that's why I bought another here, even though the price is just crazy! I keep an old 965 in the garage, and that one has taken a lot more cash to keep on the road than my old RX, (as well as driving effort)!

nycgps

iTrader: (1)

highway driving is better for this car/engine, in fact, its actually good for any car/engine.

So no big deal here.

Onyx57

sure, I was just expressing "normal" usage. If you wanna flog your RX, go drag racing or "fast and furious" for sure have to mess around with the stock set up. Then no surprise when things blow up?

nycgps

iTrader: (1)

the problem is that, you dont need to race or 2f2f to blow things up. no matter what car. Name me any car I can "blow" it up in less than an hour without racing it.

Mazda's "recommended" oil weight is just pathetic. It will cause problems in the long run.

Dont believe me? Go do some homework on your own.

Onyx57

well yes...maybe that's part of the problem. Own damage figures a lot in some of these forums, but done with a complete look of innocence.

nycgps

iTrader: (1)

nothing personal here but,seriously speaking, you should try to know more about this engine before you start your next post.

Im done for now.

Onyx57

ok, thanks for the advice, I'm working on that right now.

TeamRX8

iTrader: (25)

saw some big jugs in WalMart the other day ....

now that I have everyone's attention, they were big jugs of Mobil 1 synthetic 0W40 turbo diesel truck oil

http://www.mobil.com/UK-English/Lube...esel_0w-40.pdf



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SheffieldSteel

Interesting discussion.

Throwing out an idea or two:-
The most likely reason why Mazda recommend a specific synthetic oil in Japan but not the US is that they have tested that specific formula and got good results. That doesn't say anything one way or another about synthetic oils in general.
Another issue that might be important is that fuel formulations vary from one market to another. According to the manual, I'm supposed to put 91 octane fuel into the car, but every garage around here gives me a choice of 87, 89 or 93... and that's before we get into additives.

nycgps

iTrader: (1)

they recommend that because they will make profit out of it.

I mean is it really that hard to understand the logic behind it ? jesus.

do you know what octane is for ? there is a standard of what should be put into gasoline. So its more or less the same. they add additives into it to raise the desired Octane level (and stabilizer and cleaners)

SheffieldSteel

There is more than one standard of what should be put into gasoline (some of them refer to it as "petrol"). Also, there are different ways of measuring the octane rating, and different ratings are common in different markets - just as engines designed in different continents tend to have different compression ratios.

So much for generalities. D'you know specifically how the fuel from the Japanese market compares with that in the US? I don't. But to me it seems reasonable that, when considering what goes on inside the combustion chamber of these engines, the formulation of the fuel might have as much effect as that of the oil. Of course I may be quite mistaken about that, in which case I'm happy to be enlightened, though if possible I'd prefer that not to involve gratuitous profanity.