Wow 1000 mile Break In Engine Rule 2.7 engine😳

[SHANUT]

I guess I’m an old school nut but I break all of my engines in very gently and change the oil very early and very often. I’ve driven a couple million miles and I have never had a single engine failure/repair on any of my new vehicles. A $50 oil change is very cheap insurance compared to cam phasers or an engine replacement.

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[Jsullivan]

I kinda followed it till 1500 did my first oil change and all is good

Same here.
Now I change oil at 5000 miles.
Although I've only been off road once.

 

[Murraydog11]

I did the 1000 mile break-in. First oil change at 2000. Went with full synth. Now it's every 5000 mile oil changes with full synth. I only run 93 octane as well. Runs like a champ!

 

[da_jokker]

Well it wasn't so much about the break in as the initial build quality shake down. But I actually took it easy until more like 1,800-2,000 miles...and then drove it a total of 5k miles before going off road.

 

[buschris]

if it didn't have turbos... drive it like you stole it Is the best policy.. without redlining it. I did manual gear changes with foot to floor to 4k and let off to evacuate microscopic particles from the rings and cylinder wall. It needs that quick break in and cylinder pressure to seat the rings properly. Filter change at 2500 miles and it barely showed any particles. But I felt better about it. Oil is still somewhat clear

 

[Obeh4ve]

Done 1000 mile oil changes on every new motor I've bought or built. Even less many years ago when it was "break in the cam and then change the oil" on a new build. Never experienced negative results from doing so, so I tend to stick with it.

 

[Dorf2point0]

This topic has several threads already, but I do like the poll, @Ice Age.

Because there are so many issues being discussed about the 2.7, think you at least want to take it a tad easy.

The “change the oil at 1000” has also been debated here a ton, but in the end guys went to their perspective corners on the topic, be damned what a manual or some team of engineers says, my dad did it, so that’s the gospel! Goddamnit!

Taking it easy doesn’t mean drive like grandma, but remember that this ain‘t a Mustang and really doesn’t want to haul ass anyway since it weighs 5000lbs. Well, unless you’re in some dirt.

Great summation … Breakend is just that.. Lots of “stuff” is adjusted in the first 500 to 1000 miles.. Then, time to get that oil out.. As far as fuel economy, 5000 miles seems to be the “Magic” number.. It’s amazing how much the Dealership fought me on a 1800 mile first change on a 3.0L in the 2022 Explorer . Drove it another 1000 miles then put on old fashion Frantz bypass filtration. I think she is running clean and she acts like it every day. . She wants to “GO”!!!
My 2023 Outlander had 5000 dealer maintenance shop miles.. Don’t know if the shop changed her around 1000 or not.. Oil is clean now, but that won’t last.. 2023 is next for bypass filtration, the oil cartridge is just TOO small..

 

[IPRoutes]

It isn't just the engine that needs a break-in though 1000 miles seems excessive. By 500 miles, IMO, it is done.
I drive normally during break-in. Vary rpm's but don't get anywhere close to redline, don't use cruise control, but most important, IMO, and not just during the break-in period, don't put high load on the engine till the oil is warmed up.

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