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Discussion Starter #1 (Edited)
:confused: I'm curious what others have to say about how a new car should be broken in. Back in my the days of my youth (the '50's), most people broke their cars in very gently in order to get the maximum life from them, and the break-in period was considered to be up to 2,000 miles. There was also a group that claimed "If you want it to be fast, break it in fast". My brother in law did that on a '62 Chevy 327 and had to have the engine rebuilt at 18K. He did it again on his '66 Chevelle 327 and had to rebuild it before it had 60K. Of course those were Chevies; what do you expect!
Nowadays we're told that manufacturing technology has improved to the point that a) cars don't need to be broken in, drive them normally right out of the box or b) break-in is necessary, but only for the first few hundred miles.
WHAT SAY YOU??? Have you found that a hard break-in gave you a faster than average car? Have you proof that a gentle break-in yielded better longevity? Should the initial oil be changed after 60 miles, 500 miles, or at the first scheduled change, which might be 7500 miles?
 

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Take it easy for the first 400-500 miles to allow the brakes and other components to wear in properly. I would change the oil and filter at 1K miles although the remanufactured engine in my 91 POS Tempo had to have the first oil change at 500 miles and at 3K miles thereafter. Just my $0.02.:rolleyes:

FredB:bigsmile:
 

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Modern engines do not require a break in period.

But, just to be sure, refer to your owner's manual, or go to the dealership and look in the service manual.
 

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Discussion Starter #4
One of the things that prompted my question was the difference between what European & American companies require. I think Mercedes et al have some pretty stringent requirements for break-in. Why not the American mfr's?
 

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They now say break in periods are not required.

Personally I still babied my car the first 1000 miles and then my first oil change was early...maybe 1500 miles.
 

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Discussion Starter #6
Brings up another question==
Why are early oil changes desirable during break-in? Seems the filters should take care of any wear particles that would circulate through the engine or transmission.
 

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more than usual metal shavings from the engine not really being worn in yet. it's a good precautionary measure, and a good excuse to get rid of the OEM oil and switch to Mobil1 as soon as possible
 

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Petal to the metal, slam on the brakes. Don't warm it up, just start it cold and floor it. Abuse it like it's a rental, that's my advice.
 

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Discussion Starter #9
Might work. I've known folks who got good service from rentals they purchased, and they were probably broken in like that.
 

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i usually break in by throwing a rock through the window! :)
 

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Discussion Starter #11
Well, I'd make a wisecrack about your use of brute force, but I have a question for you. I notice you list an otis in your specs. I've seen that term dozens of times, but never a definition. What's an otis????
 

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Before anyone says "You know, those guys who make elevators." I thought I'd toss you a link that sheds much light on your question...

Otis info
 

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Duane Hughes said:
One of the things that prompted my question was the difference between what European & American companies require. I think Mercedes et al have some pretty stringent requirements for break-in. Why not the American mfr's?
I find it hard to believe that modern american designed/built engines don't need a break-in period. While high-end vehicle manufactures like BMW and Benz require an extensive one.

I go easy for the first 1000-1500 mi or so. I'll throw in the brief burst of full-throttle acceleration once in a while. Cruising at 50mph is good. And I change the oil after 750km and then again at 1500km. I change it shortly after getting the car because the factory engine oil has a higher then average amount of detergent in it.

Many people will tell you this is not needed. I won't tell you it is, but it can't hurt. You've just invested thousands in a new vehicle, what's $50 more.

Plus, the reason manufacturers don't tell you to do this, is because it will increase the operating cost of the vehicle.
 

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Quote from the Chrysler Dealer on Halloween night 1999: [0 Miles]

"Try to keep the RPMs below 2000. Punch it while driving on the pkwy 2-3 times a week...never from a stop. The first oil change is on us. Make an appointment when you approach 1000 miles. Wash off any shaving cream immediately."

50,000 miles later, still keeping it below 2000RPMs. ...most of the time.
 

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thats a long F*cking break in period, you might as well beat the hell out of it and use your warranty to replace any defective parts. Once they have been replaced (if any) then the car is broken in.
 
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