The infamous "break-in" period.

Schwany · 04-08-2009, 10:04 PM

I dont know about Nissan so I cant say how they test there vehicles, but I do build the RX for Lexus and I can say that the tests we put it through before it comes "off-line" and ready to ship, make any reasoning for a 'break-in' period, mute

tbonesteak · 04-11-2009, 12:14 PM

Quote:

Originally Posted by Schwany

I dont know about Nissan so I cant say how they test there vehicles, but I do build the RX for Lexus and I can say that the tests we put it through before it comes "off-line" and ready to ship, make any reasoning for a 'break-in' period, mute

Wow very interesting information, from an actual builder from Lexus. So can you elaborate on what kind of testing is done prior to delivery? Thanks.

LaSeeno · 04-11-2009, 01:58 PM

All these ideas are pretty much hogwash imo.

Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

Quote:

The Problem With "Easy Break In" ...
The honed crosshatch pattern in the cylinder bore acts like a file to allow the rings to wear. The rings quickly wear down the "peaks" of this roughness, regardless of how hard the engine is run.

There's a very small window of opportunity to get the rings to seal really well ... the first 20 miles !!

If the rings aren't forced against the walls soon enough, they'll use up the roughness before they fully seat. Once that happens there is no solution but to re hone the cylinders, install new rings and start over again.

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04-08-2009, 10:04 PM	#1 (permalink)
Schwany Base Member Join Date: Dec 2008 Location: Canada Posts: 19 Drives: 03 Sentra SER Spec V Rep Power: 17	I dont know about Nissan so I cant say how they test there vehicles, but I do build the RX for Lexus and I can say that the tests we put it through before it comes "off-line" and ready to ship, make any reasoning for a 'break-in' period, mute