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Discussion Starter #1
Does anybody know what the break-in time/millage is for the Mazda 3? I just want to know, for how many km I should take it easy. :)
 

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for a 1000 Miles dont run it hard, high rev, or go over 85MPH. dont change the oil for the first 5000 Miles because theres special "break-In" oil in the engine.
 

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Special break in oil?! I heard it was just the normal 5w-20 stuff and that it should be changed at 1000mi so you get rid of all the metal filings that wear down out of the engine so they don't rebond with the engine.
 

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Discussion Starter #5
Thats what I thought too. I was told that the first oil should be changed after about 3000km (about 2000 miles). Also what do you guys think about Synthetic oils, I plan to use it after I change out the factory oil.
 

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my dealer said change the oil every8000km, but he must have meant after the first oil change.

how much is 85mph converted to km/h???
 

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136.8 km/h

For the record.. 100 km/h is not exactly 60mph. Its 62mph.
 

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Erv187 said:
for a 1000 Miles dont run it hard, high rev, or go over 85MPH. dont change the oil for the first 5000 Miles because theres special "break-In" oil in the engine.
This is absolutely wrong, I'm sorry to say.

First off, run the entire RPM range, just don't hit it too hard. Don't break real hard either, if you can avoid it. Speed is irrellevant. There is no special break in oil, although the time at which you change that is different depending on who you ask. Mazda just recommends its normal oil change period, but it could never hurt to change it early on the first one, just because there will be extra metal in there.
 

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When I bought My car, they told me there was special break in oil and not to change it for the first 5000 mi. normally it's recommended that you change your oil every 3000 mi. but they said to wait for 5k because the oil has to get into every nook 'n' cranny of the engine.
 

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According my buddy, that owns Wicked Racing in OC.. He recommends changing the oil at 3k. He also says hes seen better performing engines when ran hard from 1k to 5k. Something about oil pressure...... forgot lmao.

And there is no such thing as break in oil. The oil in your motor is the same stuff found on hundreds of store shelfs.
 

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When people say that you should not drive at a constant speed on the highway for a certain period of time, what is this period of time? (I.E Is 10 seconds to long, 30 seconds, 1 min, 5 mins etc.) I think 10 seconds would be OK, but anything over 1 min would be too long. What have people heard about this?
 

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I would say 30-45 mins.

Noone ever stated a specific time. I just varied the rpms the whole break in period.
 

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About the oil changes...just do as the manual states. No need at all to change it before the 7500 miles that the manual asks for.
 

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I second thebman. I haven't get any confirmation or unconfirmation whereas Mazda put special formulated break-in oil at the factory. Lacking this critical information, following the UM seems to be the right thing to do.

Those who think there is no special break-in oil are welcome to elaborate and please provide the proof of your statement.

I wouldn't risk to flush the engine oil too early (<5000 miles), and will certainly not swap to synthetic oil before the engine completely "breaks in", i.e., 10-15 kmiles or so, or the second oil change. Notice that the MRZ engines use many low friction components (low tension piston ring, etc....), that means it might take longer for the engine to wear down into its optimal shape, i.e., when all components seat correctly, fit well to each other, so that the engine could provide a highest possible compression, and lost insignificant oil into the combustion chamber.
 

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bluong1 said:
I second thebman. I haven't get any confirmation or unconfirmation whereas Mazda put special formulated break-in oil at the factory. Lacking this critical information, following the UM seems to be the right thing to do.

Those who think there is no special break-in oil are welcome to elaborate and please provide the proof of your statement.

I wouldn't risk to flush the engine oil too early (<5000 miles), and will certainly not swap to synthetic oil before the engine completely "breaks in", i.e., 10-15 kmiles or so, or the second oil change. Notice that the MRZ engines use many low friction components (low tension piston ring, etc....), that means it might take longer for the engine to wear down into its optimal shape, i.e., when all components seat correctly, fit well to each other, so that the engine could provide a highest possible compression, and lost insignificant oil into the combustion chamber.
It is fine to say what you will do. It is your car. I think you are attempting to scare folks.

I think it is more appropriate for those who claim there is a special break-in oil to provide some kind of backup to those statements. I don't see anything like that in manual. I think all of us here are in the same boat, with new motors. Special break-in oil has not been true of Mazda cars in the past, if it is the case now please cite some reputable Mazda source????

I have changed the oil before 1500 miles, usually at a little over 500 miles on 5 previous Mazda cars, and none ever burned oil. In fact every new car I ever owned got the oil changed before 1500 miles. I also ran synthetics in the last 3 starting with my first oil change.

Mazda's US sold cars, have 4 year, 50k warrantees, and it seems highly unlikely to me Mazda would risk expensive warranty claims down the line by failing to communicate that early first oil changes would cause engine damage due to inadequate break-in. So please help us out here and substantiate your claims.

Many people have had good success with their prior cars doing early first oil changes. Many of the most expensive and high performance cars built today ship with a crankcase full of Mobil 1.

I just believe if Mazda felt it was important to delay the first oil change they would tell us in the manual. In fact I believe they would have an obligation to do so. It would be in their own best interest so why is it not there?
 

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It is fine to say what you will do. It is your car. I think you are attempting to scare folks.
They shoudn't be scared if they were absolutely sure about the type of oil filled by the factory.

I think it is more appropriate for those who claim there is a special break-in oil to provide some kind of backup to those statements.
No, it's up for those who DON'T follow the manual to backup they statement. I don't claim there is or isn't any special factory break-in oil, so I don't have anything to backup.

I have changed the oil before 1500 miles, usually at a little over 500 miles on 5 previous Mazda cars, and none ever burned oil. In fact every new car I ever owned got the oil changed before 1500 miles. I also ran synthetics in the last 3 starting with my first oil change.
I can claim also my previous cars didn't burn oil, and I didn't do more than just following the user manual.

Mazda's US sold cars, have 4 year, 50k warrantees, and it seems highly unlikely to me Mazda would risk expensive warranty claims down the line by failing to communicate that early first oil changes would cause engine damage due to inadequate break-in. So please help us out here and substantiate your claims.
Again, I didn't claim anything about the oil!!! Did I?

The engine will not fail before the warranty expires if the break-in and oil change is wrongly done. Also very small percentage of owner will keep their car until 2015 or reaching 200 kmiles. So realistically, the oil change or break-in are not critical for them, unless if they want to get the maximum performance from the engine.

Many people have had good success with their prior cars doing early first oil changes. Many of the most expensive and high performance cars built today ship with a crankcase full of Mobil 1.
Good for them... I'm talking about the Mazda3 and its factory oil and not any expensive cars and Mobil1.

I just believe if Mazda felt it was important to delay the first oil change they would tell us in the manual. In fact I believe they would have an obligation to do so. It would be in their own best interest so why is it not there?
Some of the Honda, VW, Audi put a break-in oil in their engines. Their manuals don't give any warning. Many people brought those car for the earlier first oil change and get rejected by the dealer.

Believe me, I was and am still looking extensively on any relevant information about factory oil in the Mazda3. If I find something i'll let you know.
 

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agree

I agree with gtgray

My wifes 03 Civic's UM states specifically NOT to change the oil before the recommended interval. Unless stated in the mazda3 UM, I beleive you may change the oil as you please.
 

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Oil is oil.

There is no such thing as break in oil. If a manufacturer wants their cars to run longer on the same oil from the factory, so be it. Maybe their philosophy about it is all the parts internally generate shavings. Its possible they want those shavings to "hone" the valvetrain and such.

Doesnt sound smart, but hey, we follow what they say.
 

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vaBooM said:
Oil is oil.

There is no such thing as break in oil. If a manufacturer wants their cars to run longer on the same oil from the factory, so be it. Maybe their philosophy about it is all the parts internally generate shavings. Its possible they want those shavings to "hone" the valvetrain and such.

Doesnt sound smart, but hey, we follow what they say.
There is such a thing as break in oil but it hasn't been used in about 10 years or more. You are right in that regular oil is fine and you should change it according to schedule. You don't have to worry about metal particles in todays engines - they fit with exact precision as apposed to the older cars that required a lot of settling in. On the older cars, metal filing wold appear as the break in oil did its job (this oil actually induced friction in order to properly "pre-wear" the parts - someone already mentioned this). However, I would not recommend synth oil for the first 5000 K's - that stuff has the opposite effect as break in oil.
Re-build engines typically need a break in period for the reasons listed above and I think in todays world, that is where you will usually hear the term "break in" more often - anything from the factory is good to go (although I wouldn't drive the piss out of it for the 1st 1000 km's or so - IMO)
 
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