engine break-in contradiction

03WhiteGT

Every new car I have owned (mostly mustangs) I drove it like I stole it as soon as I left the dealership. Never had a problem with any of them. And I think its funny how most of them have been labeled factory freaks due to the times they ran at the track.

Engine break-in is very subjective. Everyone has their own opinion.

Just do whatever you're comfortable with. As for me, the Z was blazing down the track before I hit 300 miles.

MacCool

We call that "anecdotal evidence", and in the scientific community it has zero statistical significance.

03WhiteGT

370Z forum = scientific community LOL

Like I said, subjective subject matter...

MacCool

Yes, I agree. "Statistical significance" doesn't get much play here on the internet. All we need is enough anecdotes to convince us that our pre-conceived notion is correct.

TypeOne

Nissan is going to know better than anyone... if that's what they say. Do it.

Otherwise you might end up with a potentially bad situation...

dad

Look, you want your car to last, you want it to be in the best shape, you want no mechanical trouble! Doing the "speed limit" the first 1K, will keep the engine under the 4,000 revs!

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OldGuy

i guess i took my friends' advice and started driving to redline in first (the little light showed up indicating i was in the 8,000 rpm, which i did on accident a few times). is this bad for my engine??

Some friends you have! You're either very foolish or must have $40,000 to burn. 8,000 rpm in fisr gear is car abuse. You're endangering both your warranty coverage and your car.
Use your head and follow the manual.

KillerBee370

The shift light doesn't indicate "8000" rpm's. The car in stock form doesn't do that many rpm's. I have a tune that allows me to hit 8000 rpm's and I'm not even able to hit that on the track. I've only seen it happen on the dyno with my car.

You drive it however you want my friend. And do us a favor and yourself, don't ask a question that you are looking for a definitive answer to on a forum full of "contradiction". That just makes no sense.

Regarding your first oil change, I always have been a fan of the 1000 miler.

Good luck to you.

spearfish25

We're deviating from the theme of the OP. I think I'll start another break-in thread so we can get back on track...

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KillerBee370

FromG2Z

ok I may be naive, but is sticking with manufacturer "recommended" (emphasis on recommended) tasks ESSENTIAL to getting approved warranty work?

Don't get me wrong, of course I do all the recommended (and at times beyond recommended) maintenance tasks, but I did not know that you HAD to do these tasks to be granted warranty work?

very interesting

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11Thumper

I believe if you don't follow the recommended maintenance schedule Nissan published they could use that to deny a warranty claim. To my understanding you don't have to do more than that, but if you see oil sparying out from the side of the block you better tow in the vehicle rather than continue to drive it.

Any good master mechanic can tell if the car was maintained or abused.

ZKdoggZ

Manufactures are making engines with much higher tolerances today. Where cylinder clearances used to be in the thousands of an inch, now its in the ten thousands. Bores are rounder and straighter. There is know reason to baby a newer engine, it will actually hurt. You need cylinder pressure to drive the rings out onto the bore, which actually shaves the bore into a perfect fit. By babying it the rings will only rub and burnish the surface leaving a less then Ideal finish. So ... keep the revs below 4000 the first 300 miles, then drive it ... accelerate with meaning for the next 2500 miles and your all set. This is how all High Performance engines are broken in, and all engines today can be considered a high performance engine since they pull more power out then there predecessors ever did.

IDZRVIT

So, what qualifies you to make this statement?

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falconfixer

I love the contradictions in certain threads. Engine break-in? Nissan engineers know best so follow the owner's manual to a T. Wait, engine oil? Hell, Nissan doesn't know what they are talking about, you can use snake piss as long as it's 5W-30.