How many miles until a new vehicle broken in?

Status
Not open for further replies.
Blackstone said it takes about 30k miles for Ford EcoBoost engines to show reductions in wear metals in the UOA's (aluminum, copper, etc...)
 
The true answer to this question: No one knows. Everything stated is speculation and there are too many variables to give 1 answer. My question back to you is, does it really matter?
 
for majority of new cars (not sure about bmw), the first oil change is scheduled at regular intervals ... No mention of early change. Not sure if it's a proven fact that the engines needs early oil change or if more of a feel good thing.
 
A relative works at the Nissan assembly plant in Tennessee which is why I buy nissans. I believe he told me that they use Exxon Mobil as a factory fill. Just Dino, not synthetic. My wife's 2018 was way overfilled by the way.
 
Originally Posted by kehyler
Hi All,

I'm considering flushing all fluids (namely transmission, transfer case, and differentials) on a 2018 Ford F-150 with the 2.7 ecoboost after it is "broken in." Is 15,000 miles a reasonable number?

Thanks!


BITOG MONEY FLUSH........ absolutely unnecessary.
 
Originally Posted by CKN
Originally Posted by kehyler
Hi All,

I'm considering flushing all fluids (namely transmission, transfer case, and differentials) on a 2018 Ford F-150 with the 2.7 ecoboost after it is "broken in." Is 15,000 miles a reasonable number?

Thanks!


BITOG MONEY FLUSH........ absolutely unnecessary.


Agreed. Volvo stated lifetime tranny fluid and my 01 s60 is still running around town with over 300k on it. I was younger and busy and don't do things like that now.
 
Originally Posted by CKN
Originally Posted by kehyler
Hi All,

I'm considering flushing all fluids (namely transmission, transfer case, and differentials) on a 2018 Ford F-150 with the 2.7 ecoboost after it is "broken in." Is 15,000 miles a reasonable number?

Thanks!


BITOG MONEY FLUSH........ absolutely unnecessary.
Why would it be a money flush? Experience,proof?
 
Round here broken may well mean 100k miles
smile.gif


Due to how many 200k miles plus vehicles people have in here.
 
Last edited:
Originally Posted by metroplex
Blackstone said it takes about 30k miles for Ford EcoBoost engines to show reductions in wear metals in the UOA's (aluminum, copper, etc...)

Any chance you can cite where?

Originally Posted by JoelB
The true answer to this question: No one knows. Everything stated is speculation and there are too many variables to give 1 answer. My question back to you is, does it really matter?

Yes, because I have to choose when I'm going to do it haha.
 
Last edited:
Pick a number you like and do it. Either way you're doing it early and achieving what you're setting out to do. There is no magic number here. I'm not against early changes of fluids, but don't believe anyone that tells you a specific number about break in or ideal first fluid changes.
 
Originally Posted by kehyler
Originally Posted by metroplex
Blackstone said it takes about 30k miles for Ford EcoBoost engines to show reductions in wear metals in the UOA's (aluminum, copper, etc...)

Any chance you can cite where?


It was in my Blackstone UOA report for the 2014 SHO.
 
Originally Posted by Trav
No break in oil is used. Some of the higher moly readings are from assy lube like eg MolyKote Gn and are of little or no value once the engine is running and getting oil.



Hahaha, if it was any good for wear reduction you can bet we'd be spooning in that assembly lube at every OCI!
 
Having broken in over 65 new cars, I used to do the "early" oil changes around 600 miles.
Most time with the "premium" oil I put in, the engine ran much worse after the change.

Didn't matter for oil use or engine longevity.

I'm in the 2000-3000 mile camp now for initial change of factory engine oils.


On My Honda FIT manual, when the trans got noisy and the shifting balky it was time. Surprisingly that was around 15K.

On the Nissan the fluid showed "mud" on the dipstick, so I got that done I think around 30K but should have done it after 1 year or 15K IMO. The dealer refused. Those JATCO shed some serious material during wear in. Mine was solid as a rock and I "beat" it and manually shifted it up and down constantly. They did a reprogram after I had the fluid change and I didn't like the new program. It would stay at higher revs with lighter throttle than the factory programming. Maybe they messed it up and went backwards in software version.

My lease '19 Jetta w/ mt still has the factory ENGINE oil in a high pressure 1.4L turbo with a small sump. I think Its about time for that to get dumped, actually. Getting a bit of "clatter&rap" at low revs with hot oil means too thin in my perception..
 
Last edited:
Originally Posted by ARCOgraphite


Having broken in over 65 new cars, I used to do the "early" oil changes around 600 miles.
Most time with the "premium" oil I put in, the engine ran much worse after the change.



The engine ran MUCH WORSE after an oil change ? Based on what exactly ?


Every one of my cars was HAPPIER with fresh oil ...
banana2.gif
 
Last edited:
I guess that was more in the days of API SL. Though the wife's last subaru Forester didnt like the OC over factory. That was OCI #1 and the big moly came out and bleechh Idemitsu 0w20 went in.

Why happier with fresh oil? You run the oil very long intervals?
 
Status
Not open for further replies.
Back
Top Bottom