Nubo, like Zoom44 said, the individual regional companies decide what cars to import, and what warranties to give them. For example, I understand that in Australia they did not extend the core engine warranty to 100,000mi/160,000km; and Mazda Ireland is not even selling '09 RX-8's. The regions can do, and recommend, whatever they want in their business segments. I don't think the argument would work well in court that another region does something different.

Edit: I think we can agree on two facts: That 5w-20 oil was an emission-mandated decision, and (this is the tough one) that there have been no long-term tests done on running 5W-20 synthetic oils as far as apex seal lubrication and carbon deposits.

 

OK so I went to service today and theirs my new engine not install yet.. But the claim still hasn't gotten approved..The tech thats working on my 8 is telling me not to worry He said being that you had the reg oil in the engine for a couple days that it should cover up the blue synthetic oil stains on the bearing, but when Mazda cracks open my old engine there still maybe some synthetic oil residue. This makes no sense, am I getting all stressed out for nothing? I just hope I don't get banged in a couple of weeks with a 4000. bill

 

yeah they arent going to crack it anywhere but the reman center and they wont track it back even if they had reason to.

 

Wtf, my engine must look like a Smurf

 

Maybe they need to use another excuse.

 

Silver06, I guess we see it differently and I wouldn't want to have to test it myself in court either way.

But at some point Mazda's case has to come down to whether or not a customer's actions could reasonably be construed to have caused harm. They can put anything they like in the manual, but if it is arbitrary or capricious they would ultimately have a hard time enforcing it. And that doesn't even address the issue of trying to define the term "synthetic"! That's another can of worms Mazda would do well to leave unopened.

 

The wording of your US manual as far as 'recommendations' and their implications as to warranty does appear to be open to interpretation. In this regard, I think you would have a good argument.

In contrast, in my Canadian manual, the: "Caution, do not use..." statement appears to me to be quite definitive, at least as far as an 'out' for Mazda Canada to choose to deny warranty (in this case), as the engine is being replaced due to not starting and/or low compression.

I would opine, in both of our countries, that the result of burning (as designed) non-petroleum oils, could either be detrimental to the installed emissions-control equipment, or harmful to the environment. I think this is what Mazda Canada and MNAO have based their intent on (assuming that other countries' do not have the notes about 5W-20 or synthetic oils). It is also my opinion that the 5W-20 recommendation is based solely on fuel economy, not on engine longevity.

IMHO, the root problem in the Renesis is insufficient apex seal lubrication along the centrelines of the rotors, and an overabundance of lubrication along the peripheries - causing both incomplete lubrication of the apex seals, and a coincident incomplete burn of the lubricating oil causing carbon buildup.

Why we are having these issues is unknown to me; whether this is a design flaw; the nature of the engine; or has been brought about by oil consumption reduction / emissions worries or, other external decisions.

I'd love to see (warranty) engine replacement figures for North America compared to the rest of the world - where thicker oils are recommended, and synthetics are not precluded.

Finally, there are so many cautions and warnings on products that I think they are overused and misunderstood.

I've enjoyed the discussion on this topic. I hope the Original Poster gets his engine repaired!

 

MAZDA WARRANTIED MY ENGINE!!!!! I will have my 8 back on Monday, One of the techs said when your car first came in did we check your coil? I said no all he did was Solution A. Plugs and wires I even brought that up to them and they said your not a tech we know what we're doing. So I'VE had a bad coil the whole time (that i gotta pay for $23.00) the coil was causing the misfire but i sill had low compression, anyway I got the reman engine and a new cat. So overall I'm happy that Mazda back up their warranty.....Maybe just Maybe theirs stil hope for Mazda

Thanks everyone for all the great feedback If I didn't have this thread I wouldn't have had the right information to get the new engine

 

Thanks especially to NYCGPS and ZOOM44 for all the right info

 

no worries- its why im here