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  #1  
Old 09-10-2009, 03:28 AM
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Best way to break in a new engine

My cousin is getting get a brand new 2010 Land Rover LR4 and wanted to visit my family in Mesa, Arizona and asked me if I knew if that would be okay for a new engine..

I have no idea!

Is it okay for a new engine to have its first 1000 miles on the highway? I imagine it's better than city?
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Last edited by JordaanDMC-12; 09-10-2009 at 03:37 AM.
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Old 09-10-2009, 04:09 AM
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despite what they say in owners manuals, you really want to run an engine pretty hard for the first couple 'o thousand miles.

Not so much heavy accelerations, but running at high power demand at constant rates..... kinda like on a highway.
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Old 09-10-2009, 06:23 AM
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I always read that long periods of constant speed were bad. The high road speeds are not a problem. Just tell him to vary his speed.
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Old 09-10-2009, 06:24 AM
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When I had my favorite machinist rebuild the motor in my 82 300td, the next day I sent the lovely Mrs. W on a trip to New Orleans.

No problem.
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Old 09-10-2009, 09:04 AM
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I've read on a few forums (Jeep, Mustang etc) that pouring water in the crankcase helps.
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Old 09-10-2009, 09:24 AM
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I prefer the "Italian Tune-Up" method. Get it on the highway and run the beJesus out of it.
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Old 09-10-2009, 09:28 AM
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Quote:
Originally Posted by JordaanDMC-12 View Post
My cousin is getting get a brand new 2010 Land Rover LR4 and wanted to visit my family in Mesa, Arizona and asked me if I knew if that would be okay for a new engine..

I have no idea!

Is it okay for a new engine to have its first 1000 miles on the highway? I imagine it's better than city?
I drove my car its first 500 miles all highway and no problems yet. Of course, it only has 2600 miles now.
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Old 09-10-2009, 09:31 AM
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Why not ask the Service guys at the LR dealer where he bought it?
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Old 09-10-2009, 11:47 AM
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an old engine builder I used and a national record holder drag racer told me to go on the highway when there isnt a lot of traffic and put it in 2nd, should work on an auto in 2nd not D, then run it up to red line and let off the gas and let it decell down until it bogs, then accell back up to redline and then let off until it bogs, one more time to redline all of this in 2nd. he said it dumps gas in the cylinders and gives the rings a good fit and scratch in. of course this was on a carbuerated engine, not sure how it would work on fuel injection
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Old 09-10-2009, 11:55 AM
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Not sure why anyone would go against the recommendations of the engineers and car company that built the vehicle.
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Old 09-10-2009, 12:31 PM
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Quote:
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Not sure why anyone would go against the recommendations of the engineers and car company that built the vehicle.
Exactly. If it's not in the manual, just ask!
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Old 09-10-2009, 12:33 PM
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Quote:
Originally Posted by The Swede View Post
I've read on a few forums (Jeep, Mustang etc) that pouring water in the crankcase helps.

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Old 09-10-2009, 12:53 PM
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See p. 142 of the owner's manual (also available at landrovertechinfo.com) -- for the first 800km (500mi), limit engine speed to 3000rpm/road speed to 68mph, no sport mode, avoid heavy braking and accelerating, do not use full accelerator pedal travel, etc...

This should all be in his manual!
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Old 09-10-2009, 01:23 PM
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There are very good arguments for running a new engine hard, not to redline, but to build peak cylinder pressures to seat the rings well. That's really the only thing that "breaks in", and once that's done, you should have a well sealed engine that doesn't burn much oil.
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Old 09-10-2009, 01:39 PM
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Quote:
Originally Posted by cscmc1 View Post
See p. 142 of the owner's manual (also available at landrovertechinfo.com) -- for the first 800km (500mi), limit engine speed to 3000rpm/road speed to 68mph, no sport mode, avoid heavy braking and accelerating, do not use full accelerator pedal travel, etc...

This should all be in his manual!
Well he doesn't have the car yet, but is in the process of getting it. So we wanted to know before hand. Based on that though I would imagine it's okay then? If you don't surpass 68 mph and keep steady speed, since it doesn't say "First 500mi city only" or "No highway".

How long do they run engines at the factory? Don't they do dyno tests with them there?
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