nycgps

iTrader: (1)

Wow viscosity, they can't tell what oil u use based on that,

not to mention 5w20 GARBAGE that they recommended ... wait, u know the definition of "recommended" right ?

no it does not mean "MUST", completely different.

why am I still replying ur crap? **** I FAILED

lol @ break down seals ... what seal are we talking about ? lmao.

Iluvrevs

GTDave is correct in that a dealership could easily if so inclined run the same UOA others of us are that would expose viscosity variations. But, from what we have in the UOA section even a 10w40 is shearing to 30wt so they probably wouldn’t have an issue there. If anyone was to query customer service like I did they'd probably get the same response that 30wt is acceptable in certain parts of the country if the dealer feels it necessary so Mazda taking issue with at 30wt is unlikely, again if so inclined. If they really wanted to they could pay 300-500$US for a GC scan of the oil that would expose base stock chemistry. Not saying they would, just saying they could.

nycgps

iTrader: (1)

and your point?

engine tear downs already PROVED that what they recommended is a god damn joke, if I hate my car Sure I would use 5w20.

not to mention, the word "recommended", mmm, does anybody actually know what that means?

it's so damn funny that some PEOPLE choose to listen to that "recommended" thing on the oil, but NEVER listen to the part that Mazda "recommended you to do all service at an Authorized Mazda Dealer"

the "recommended" oil is already wrong, if they recommended like 5w30, I'm pretty sure there wouldn't be as much bearing failure on 13B-MSP, **** I mean even higher power 13B-REW has less bearing wear than MSP. That's just sad.

Enough of this crap, 5w20 is a joke, have data to back it up, gg

ASH8

You won't get any argument from me J about 5W20 in Rotaries.

FWIW...a Mazda Dealer will NEVER analyze Engine Oil, Gear Oil, Brake Fluid or Coolant...EVER.

Mazda Motor Corporation (MNAO) does NOT PAY for fluid analysis....EVER.

Disclaimer: Unless an owner puts crushed bananas in as a supplementation to Oil or Fluid, and then try to claim 'warranty' on the brand or threaten to sue...then they WILL.

nycgps

iTrader: (1)

of course not, cuz we are all wrong !

Mazda knows best we know absolutely nothing. Like GTDave said, it's stupid NOT to follow what the manufacture recommends

Pyrocytor

Thank you for blatantly summarizing everything up.

GTDave

One of the tests done when they do an oil is viscosity. I have no idea what you are ranting about.

paimon.soror

iTrader: (15)

the odds of you telling me what oil I run or the weight i use based on the viscosity in my reports is slim to none. I think that is what nyc is getting at

nycgps

iTrader: (1)

brrrwwaaarrrr i dunnnnno waaat ?

me use only recommended factoryyy oil no? me stupid if no use recommended oil no? waaaaaaaaaa

usnidc

Anybody using the new Castrol Edge (syntec) 5w-50?

DarkBrew

I have a question for nycgps
The engine tear-downs you are referencing:
Can you provide geographical locations and oil brand, type and viscosity used?
Which engine parts had the worst wear?

nycgps

iTrader: (1)

ones i saw all came from nyc.

mostly bearing wear. and it scores the e shaft too so both were not reusable.

saw 5 engines i think? according to the owners, 5w20at dealership.not covering cuz they deny them for stupid reasons, told them it cost 5-7 k to change so they went elsewhere. the shop just get remans from Mazda and chanrge these folks 4.5 grand installed, good money.

Mazda have core charge but those suckers not gonna know so I opened them up and see it, just the rear iron and i can tell both bearing and e shafts are bad.

Mazda knows best and 5w20 ftmfw?

next time when I have a chance i will snap some pics.

oh btw, 2 of the rear iron had some discoloration. probably due to lack of lubrication.

40w8

This might be a good light oil for some cars speced to 10w60, but Mobil 1 0w40 has higher HTHS of 3.8.

I've gotten really good uoa's with 0w40 at 5k miles, which also was tested to give the best hp against many other oils as thick as 5w50.

The best lubrication is near the thinner side to get some oil flow, and yeah, 5w20 is too thin.

IMO 5w50 is overkill thick, unless maybe racing at very high oil temps.

bse50

The last time I checked (maybe 1 year ago) Mobil 1 still didn't mix well with fuel.
I wouldn't use it on non-sohn equipped cars.

nycgps

iTrader: (1)

u both are wrong.

Mazda knows best we know nothing. BRAWWWAAARRRRR !

40w8

^Yeah, we know you're a 20w50 lover. It's probably even good on hamburgers.

40w8

I've never seen a motor oil that doesn't mix with gasoline, and I've delivered both in a fuel tank truck.

And why does the motor oil need to mix with gas if it is dribbled on the side chambers?

mikimazda

i made some testing on the begining with the m´Mazda dexelia 5w-30(recemended from mazda service´s ) and after first UOA i decided to jump on Motul 300 V Powerracing 5w-30...the next UOA showed that after first oil change engine took after 3000km almoust all of the molybden,i my oil consulting company said it is normal,but also not so good sign,it showed that dexelia ist protecting my engine like it should be.the company also said to me the molybden use should be less after few oil changes ,and yes it did go down.i am laso premixing with Motul 810 2T oil ,also full synthetic and double ester.every next UOA showed me that i am on the right way.oil change after 3500km,and i have no fear at all

40w8

Moly is a good antiwear additive like boron, etc., but many motor oils still don't have it, so it's like an optional ingredient.

I think the metal could absorb some moly for antiwear, but I don't think one can read wear by whether the moly is a certain number or not.

Wear is about #4 down on the list of what can be seen on uoa.

#1 Coolant in oil

#2 Fuel in oil

#3 Dirt in the form of silicon, and silicon ( not dirt) is in some oils up to 7ppm or so for antifoam.

Those antiwear additives are reacting with metal, and if you keep dosing the metal with new oil it might even cause more wear.

That's another reason I go 5000 miles on my RX8, and 10000 miles on my Dodge 4.7L.

HiFlite999

iTrader: (2)

The zinc, ZDDP, will poison cats. I wouldn't use it unless you're catless.

40w8

^I've never seen a motor oil that doesn't have some zddp in it.

It's thought that a motor oil with EXCESS ZDDP will kill the cat, so the oil companies scale it back, and add BORON and MOLY.

Iluvrevs

Check it out. Someone may have actually tried to sell used oil as new.

http://www.pqiamerica.com/

exarkun

So, 9 years later, what is the cumulative conclusion???

nycgps

iTrader: (1)

is people are ***** and doesn't know ****.


Synthetic ALL THE WAY !

paimon.soror

iTrader: (15)

fwiw i am nearing 3000 miles on my first run of M1 0w40. Interested to see how the numbers compare to others. Hopefully far better than the RP held up.