People saying to change your oil at 1000 miles on new vehicle.

What proof is out there for these people to say you need to do your first oil change at 1000 miles for longevity, when the does not have anything in it?
Who listens to"these people"? What do they know?
 
I always believed there was some debris left from manufacturing and assembly and I know there is debris from break in. Weather or not it was small enough to slip by the filter or enough to cause damage is unknown. I am also sure that some engines have more debris than others and I always assume that mine is the one with the most junk in it so I always changed early, usually about 500 miles. Its cheap insurance just like checking the tire pressure even though you were told they check it during delivery prep. By the way check that too, its never right on all 4 tires.
 
Three first filters on three new vehicles I have owned. Maybe this will help with your question if you should change the oil and filter at 1k miles. Every new vehicle I have owned has had lots of metal and gasket material in at least the first filter.



 
In the absence of break in oil, the extra abrasion may help bed in the piston rings.

That's why Honda says not to change early.

I wouldn't be surprised if people who changed early got oil consumption.
The last vehicle I had consume oil was 17 years old.
Owned many - some that people call oil burners. Not mine. All broke in slowly (bcs it’s the whole vehicle, not just the motor) …
And yes, a 1k change - want a better oil and filter anyway
 
I believe they have removed this verbiage from there manual now for some time. I don't own a Honda, just what I have read elsewhere.
'12 Civic, '18 CR-V, and '22 Accord in my family. None of the owners manuals refer to changing the oil early or making sure to run it for any specific period of time. They simply say to change the oil when the MM says to or change it once a year (whichever comes first).

I also know that when you call the dealer to schedule an oil change, they normally ask if the MM says it's time and if you tell them no, they actually discourage you from changing it and insist you wait. When we leased an Accord years ago, I was still stuck in the 3000 miles thinking and being our first lease, I thought I needed to have the dealer do the work. Dealer told me "we won't change it until the MM says to".
 
Automotive engineers are amazing folks, I guess. With different manufacturers and different warranty lengths, they have magically calculated how much debris will be generated but are able to calculate it out so the engines don't fail until the warranty is over.
 
Way back in the day the users manual did say to change early - I am talking 60's / 70's maybe. Like 500 or 1000 miles.

There may be many reasons why they don't do so now, but there absolutely is a lot of debris in the first 1000 miles. Its not "left over", its break in where - from imperfect parts rubbing against other imperfect parts - like bearings and seating in piston rings on the bore. These parts all have a tollerance, and their designed to wear in to the exact machines surfaces with which they match during early use.

In theory they oil filter should catch that, but as mentioned, if you want to rely on that feel free, but some of us don't.

Many small engines still have a break in spec / time, probably because they have no oil filter.

The 2001 Subaru I had had you change the first oil early at 3750 miles vs the regular 7500 miles. It also had breakin instructions for the first 1000 miles. Interestingly the breakin still exists for 2024s but no early oil change but the non severe interval is now 6000 vs 7500 back in the day. The old ones also were fine recomending up to 20W-50 for severe driving.
 
"could" be. There's zero proof. If someone doesn't do this early oil change and the engine lasts 500k miles, the argument is it could have lasted 1 million ?
Exactly.

The premise of this thread is "prove it". Typical internet. "show me the white paper", or whatever.

The only people with the money to do proper scientific tests would be the OEM's. If they ever did such tests they wouldn't publish them.

Its intuitive from anyone that spent time around machining or specifically machine break in that there is more wear material in the sump in the first run than subsequent runs. The question is does it matter. The answer is, who knows - do what you want.

I change mine early. If you don't want to, don't. The funny thing is that those that don't, always want to prove the other half wrong for some reason. 🤷‍♂️

If i win the lottery I will commission a white paper.:ROFLMAO:
 
'12 Civic, '18 CR-V, and '22 Accord in my family. None of the owners manuals refer to changing the oil early or making sure to run it for any specific period of time. They simply say to change the oil when the MM says to or change it once a year (whichever comes first).

I also know that when you call the dealer to schedule an oil change, they normally ask if the MM says it's time and if you tell them no, they actually discourage you from changing it and insist you wait. When we leased an Accord years ago, I was still stuck in the 3000 miles thinking and being our first lease, I thought I needed to have the dealer do the work. Dealer told me "we won't change it until the MM says to".
You have to put yourself in the shoes of their service department, though. Oil changes are low margin work, and often used as a carrot to dangle for potential customers, to get them into the shop and then try to up-sell them on other services for their higher mileage car.

If you're calling the dealer and saying that you want to have the oil changed on your near-new car a bit early, well then they know they aren't going to be able to up-sell you anything else, because the car is so new. So you're basically a zero profit customer for them that day and they'd prefer to not waste their time with you when they can get somebody else. They don't actually care about you running your oil out to the MM for any technical or tribology related reason.
 
If you are adamant on early first changes then better not buy used vehicles. Cause most people don’t do them. The way I see it, if you’ve ever taken used vehicles to high mileage then you likely did that without an early first change. If you want to do it then go for it. Don’t think it matters. Things other than the engine always made me get rid of old vehicles.
 
I bet 99% of car owners don’t do this yet their engines live happy and long lives
This right here. Those who buy a new vehicle, other than fleet maintainers, and keep than for a long time are a small minority of the population. Anymore, most people who keep vehicles for a long time tend to to buy used. So most of those people would never had the opportunity to be able to do a first oil change
 
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