Ok, here is the first case I have personally seen. As everone knows I work for a local dealer. We had a possible motor failure on an RX-8. The customer had no oil change records with the dealer and was asked to provide proof of services. Which they can do. The slips brought in said Moble 1 oil and filter. Guess what? Warranty denied until customer authorizes tear down due to Moble one not being recommended. I will keep you posted.

 

What?

My dealer uses Mopar oil, which is MOBILE 1 repackaged in 'Mopar' 4 quart jugs!

Edit: This was done at Darcars Mazda...I have since quit using them for other reasons.

 

Mazda corporate cannot deny warranty coverage based on the type of oil, as long as it meets all viscosity, temp, etc requirements stated in the manual, which Mobil 1 does. Any dealer can deny warranty work however, that is, until Mazda pressures them to do it. I'd take that one up the ladder.

 

So according to this logic...Mazda can deny warranty based on what an authorized Mazda full circle dealer does? LOL... :fawk:

There is more to this story we aren't hearing.

 

What's the deal with Mazda and its dealers? I went to my dealer yesterday to buy some engine oil. The guy says, "I do not have any that I can sell. We get oil in these huge tubes. Just go to any autoparts store and buy 5W30. You will be good." I was like "tubes", "5W30"??? I asked him which brand oil do you guys use and he says "Ford" As far as I know Ford does not make motor oil. Most probably they get it from somebody and put their tag on it. The guy had no clue about what he was talking.

 

The problem is that the customer maybe responsible for some charges if the repairs are not covered and that came straight from Mazda. My suggestion to everyone is to keep all your records. I am trying to start a battle here, just letting everyone know what "can" happen. Trust me I have seen this with other cars and seen a few people fight it in court and have lost with other car brands. The worst part is Moblie one gave a letter stating they don't recommend their oil in a rotary

 

If it's Mobile 1 Synthetic oil, it's one of the synthetics that is not good for the rotary. (According to those that heard from expert sources at Seven Stock 8.)

 

Doesn't matter what Mobile 1 says. What matters is what the car's manufacturer says. If the oil used, MEETS or exceeds the manufacturers recommendations, then they CAN'T deny warrant. And Mobile 1 oil meets those standards as stated in the owners manual.

And I find it VERY suspisious that my Mazda Full Circle CERTIFIED dealer used MOBILE 1 oil during my oil change.

Still say there is more going on here than we are being told.

 

trust me no more to the story.

 

If I remember correctly, the "factory" oil that Mazda dealers use is Motorcraft, which is Ford.

 

What happens when most of us buy/change our own oil ... especially in bulk? Blah

 

Maybe only ASE certified folks can change their own oil
Even then wonder how anybody can provide proof of what went in and when it went in...

 

This sucks. I change my oil all the time. I got no proof. I guess we should all keep a detailed information booklet for our car.

 

Oh, I SSSOOOOOO wish a mazda dealership would try doing this to me!

Void my warranty for using the proper viscosity oil?! HAHA, my corporate attorneys would have a freakin' field day.

Magnuson Moss Act will cover this customer unless he grossly abused the engine somehow.

 

I received a DVD in the mail with updates, on it Mazda states that synthetic oil is not recommended for use in the RX-8 engine

 

Yeah, this sounds fishy...

Now the Renesis can't use certain "brands" of oil...while all other scientific requirements are met?

I'll wait till you report back, this sounds like major bull.

 

a rotary engine is not like a piston engine, since a rotary intentionally injects engine oil into the combustion process the manufacturer has a sound case on why they can specify the use of oil type, the problem they'll have is it never specifically stated so in the OM which means they'd have to prove that the customer received the information in some other way, but a manufacturer has very deep pockets and can drag a case out longer than most people can afford

 

Synthetic oil is OKAY for rotary engines.

I personally confirmed this with top Mazda engineers / executives @ Sevenstock. (you don't believe me?! Ask Rotarygod, he did the same)
Mazda just don't like certain synthetics, which is why they 'do not recommend' synthetics to be used. They didn't want to resort to making an "approved" / "not approved" list of oils.

Now you're trying to tell us that MNAO is going to do this for normal oil?!

HAHA, been waiting to use this one:


There is certainly more to this story, maybe they just didn't tell you all of it...

 

From the Mobile web site:

"Myth: Using Mobil 1 will void the warranty on my new car.

Reality: Mobil 1 with SuperSyn Technology will not void new car warranties, with the exception of the Mazda rotary engine (Mazda does not recommend any synthetic motor oil). Mobil 1 exceeds the API and ILSAC motor oil service requirements for all new vehicles, both import and domestic. If in doubt, always check your vehicle owner's manual or contact your vehicle's manufacturer.
"

Aside from the impossibility of verifiing what has been run through the engine, the "Don't tell, don't get in trouble" thought would seem to be the best tactic. In this case apparently he verified he had specifically done what's not supposed to be done....

But beyonf that the only ? I would have is "Why waste your money on synthetic oil, when dino oil is what your car needs and is spec'ed by the manufacturer" Regardless of Mazda's reasoning, if they say no syn, why do it? In my mind it's like the kid doing specifically what his father has said "Don't do that!" and then arguing he souldn't be in hot water when found out.

Path of least resistance and all that stuff would seem to apply here..but I dunno...peps seem to want to do strange things.