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

I have read on a different forum that Honda (and probably some other auto manufacturers) don't want the 1st oil change done early because they use some type of moly assembly lube that they want circulating through the engine during the break-in period.
Any links to where Honda has said anything about this?

The few times I've looked for an official position from Honda, the result is someone on a random forum saying Honda said it, or every now and then it appears in a dealer website FAQ, but I've not been able to find anything official from Honda. Even you are referencing a forum post, not anything directly from Honda. I think that if this were an official position from Honda, you'd find it mentioned in the owner's manual or in a service manual.

Maybe the info is out there and I've just been unable to find it.
 
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.
But one thread now has another debate over how often a filter bypass opens - so I’d rather toss one early - then step up to 20 microns and a known lube … Once in the life of a vehicle won’t break the bank!
(and I love to see the underside new 👀) …
 
For whatever it's worth, BMW M cars require a (complementary) oil and rear diff fluid change at 1200 miles. Apparently they use thinner oils at the factory to help with break in, but I've never looked into it further.

My opinion is that an early change certainly can't hurt, even if not "required"
 
Sure, but even if the filter catches some debris, changing the oil & filter early doesn't help. Once the filter captures that debris, it's captured forever, not going back into the engine. It could become an issue if the filter catches so much debris that it fills up the pleats and impairs the flow, but that ain't gonna happen unless there is something seriously wrong with the engine.

In days of yore, engines weren't machined like they are now, and relied on proper break-in procedures to seat the piston rings & cylinder bores. It was common practice to change the oil after the first 1,000 miles. Now, not so much.

PS: to answer the OP question, "none". But it's a free country, anyone can waste their time and money if they want to.
Machining and clearance checking has been quite good and appropriate for over a century. Materials and foundry methods employed have improved.

Many OEM DO NOT EMPLOY a factory filter with base end bypass, therefore much of the debris at the dome and loose material at the media pleat surface will be washed into the mains drill during a bypass event.

If you have a Ford or replace with an aftermarket filter with the short path base-end bypass you can avoid this to a great extent.

This is critically important on modern engines will multiple hydraulic control orifices and mechanisms.

If you rightly worry about these things I would recommend changing the filter after the first 10 to 20 hours. - Arco

Sub-optimal Dome-End Bypass Valve
Screenshot 2024-10-26 115142.webp
 
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.
Valid point. My wife has a new Toyota and it comes with 2 years of free "maintenance", effectively oil changes, tire rotations, and inspections. I ask her if they say anything like air filters, wipers, etc need replaced and they don't. I've warned her that once the free part is done or the warranty is over, it will change.
 
I think that if this were an official position from Honda, you'd find it mentioned in the owner's manual or in a service manual.
Honda may do what the rumor says but they consider it proprietary and simply won't acknowledge doing it.
 
I typically follow this. What my Dad taught me. I did it in wife’s Mazda CX-5. Changed at 2K or so, then 6K then 10K. 5K OCI after that. Seems to have served me well.

Got my Mazda 3 with 4K miles on it (dealer loaner vehicle.) got a great deal on it. Dealer changed oil at 4,158 miles. I changed it again at 7K. Will change again at 10K then do 5K OCI.

Does it matter? Not sure. I feel better doing it though.
 
Thinking of changing the '25 KIA SOUL factory oil and filter within 500 miles of the 600 mile break in period . Oil LEVEL getting low . Will be using P.U.P. 0w-20 and CARQUEST Premium 85334 or MICROGUARD MSL51334 . Wouldn't do follwing oil / filter change until spring . Thinking 4,500 > 5,000 miles at that time . Go to here for details .

 
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Any links to where Honda has said anything about this?

The few times I've looked for an official position from Honda, the result is someone on a random forum saying Honda said it, or every now and then it appears in a dealer website FAQ, but I've not been able to find anything official from Honda. Even you are referencing a forum post, not anything directly from Honda. I think that if this were an official position from Honda, you'd find it mentioned in the owner's manual or in a service manual.

Maybe the info is out there and I've just been unable to find it.
Have you tried calling Honda corporate?
 
Have you tried calling Honda corporate?
Let me save someone the phone call.... It will go something like this:

BITOG'r: Do you guys use a "special" factory fill oil that is supposed to be left in a long time and not changed early, like at 1000 miles?
Honda: Thank you for your question sir/madam. I would advise you to call your local dealer for questions about oil. Is there anything else I can help you with?
 
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?
There is none. There are probably 10x as many cars on the road which didn't have it done and have as many more more miles on them before they're retired.
 
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