engine break-in contradiction

MattP725 · 06-19-2012, 09:00 AM

Quote:

Originally Posted by 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.

You're missing the point. Break in procedures really provide no monetary gain for Nissan (unless you were to blow the engine I guess)... some people dispute that the ester oil is somewhat a gimick to an extent to drive service revenue at Nissan.

Not saying I agree or disagree but they aren't exactly apples to apples.

MattP725 · 06-19-2012, 08:57 AM

Quote:

Originally Posted by 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.

Thank god you were here to answer the question...... a year later

LakeShow · 06-19-2012, 02:07 AM

Just follow the user manual. The manufacturer is clearly telling you how it should be done and that's it. Anyone who has another method is just opinion and preference.

370ZGTR · 06-19-2012, 02:11 AM

for future Z owners, when breaking in your new Z, DO NOT drive it over 4,000 rpm for the first 1,450 miles (breaking period) or else...let me just say, new engine installed by NISSAN USA, warranty =)

homeryansta · 06-19-2012, 07:15 AM

The break in period is for the clutch. Not the engine.

andre12031948 · 06-19-2012, 08:38 AM

People that know what it means would not rev a new engine to 8,000 rpm.
This is how I brake in my cars(I've owned over 25 cars). Accelerate slow, shift at 2,500 rpm, once in a while accelerate(in any gear)till about 4k & then lift foot off gas pedal. That opens up the rings & helps the rings get a great seal. Change break in oil at about 1,500 rpm. Just enough to break in engine & get rid off any loose material in the oil. I mostly always shift at apx 2,500 rpm. Except for passing or getting on the highway or racing, I never accelerate fast/rev high for no reason or stupid reasons like listening to my exhaust. period.

People that accelerate/high RPM often, will wear out their rings much sooner & put more wear on their bearings/all parts..

I have two nissans near 180,000 miles & almost burn no oil & oil stays clean.

IDZRVIT · 06-19-2012, 10:08 AM

Quote:

Originally Posted by homeryansta

The break in period is for the clutch. Not the engine.

So, what qualifies you to make this statement?

mantella87 · 06-19-2012, 09:06 AM

The cancer.

06-19-2012, 02:07 AM	#3 (permalink)
LakeShow A True Z Fanatic Join Date: Dec 2010 Location: L.I., NY Posts: 5,307 Drives: Everything Rep Power: 27	Just follow the user manual. The manufacturer is clearly telling you how it should be done and that's it. Anyone who has another method is just opinion and preference. __________________ \|2013 Audi S4\|Ibis White/Black\|S-Tronic P+\| \|2013 370z\|PearlWhite/Persimmon\|Touring/Sport/Nav\|F.I. CBE 18" CF\| \|Sold\|2011 370z\|Gun Metallic\|Touring/Sport/Nav\|

06-19-2012, 07:15 AM	#5 (permalink)
homeryansta Enthusiast Member Join Date: Apr 2011 Location: Brooklyn Park, MN Posts: 424 Drives: 04 se-r spec v, 370z Rep Power: 16	The break in period is for the clutch. Not the engine. __________________

06-19-2012, 08:38 AM	#6 (permalink)
andre12031948 Banned Join Date: Feb 2011 Location: monticello new york 127 Posts: 1,095 Drives: 08 350z black 6m/t Rep Power: 0	What is RPM ? People that know what it means would not rev a new engine to 8,000 rpm. This is how I brake in my cars(I've owned over 25 cars). Accelerate slow, shift at 2,500 rpm, once in a while accelerate(in any gear)till about 4k & then lift foot off gas pedal. That opens up the rings & helps the rings get a great seal. Change break in oil at about 1,500 rpm. Just enough to break in engine & get rid off any loose material in the oil. I mostly always shift at apx 2,500 rpm. Except for passing or getting on the highway or racing, I never accelerate fast/rev high for no reason or stupid reasons like listening to my exhaust. period. People that accelerate/high RPM often, will wear out their rings much sooner & put more wear on their bearings/all parts.. I have two nissans near 180,000 miles & almost burn no oil & oil stays clean. Last edited by andre12031948; 06-19-2012 at 08:46 AM.

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06-19-2012, 02:11 AM	#4 (permalink)
370ZGTR Base Member Join Date: Nov 2011 Location: Los Angeles Posts: 10 Drives: '09 Nissan 370Z M6 Rep Power: 15	for future Z owners, when breaking in your new Z, DO NOT drive it over 4,000 rpm for the first 1,450 miles (breaking period) or else...let me just say, new engine installed by NISSAN USA, warranty =)

06-19-2012, 09:06 AM	#8 (permalink)
mantella87 Track Member Join Date: Jun 2011 Location: Sacramento, CA Posts: 590 Drives: 2011 Z34 MT Rep Power: 16	The cancer.