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  #13  
Old 08-30-2010, 11:47 AM
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Re: "Break In" Period

i've been told the oil that comes with brand new vehicles were specially formulated for the break-in period, so changing it out sooner than recommended is a bad thing.
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  #14  
Old 08-30-2010, 12:32 PM
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Re: "Break In" Period

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Originally Posted by chibianh View Post
i've been told the oil that comes with brand new vehicles were specially formulated for the break-in period, so changing it out sooner than recommended is a bad thing.
While some makers used to use a "break-in" oil, I am not aware of any that do so nowadays. Possible, but not near as necessary.
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  #15  
Old 08-30-2010, 03:33 PM
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Re: "Break In" Period

The owner's manual recommends to complete the first oil change at 8000 miles, then every 8000 miles after that. (This is for the 5.7L.)
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  #16  
Old 08-30-2010, 04:05 PM
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Re: "Break In" Period

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Originally Posted by jpsmith View Post
The owner's manual recommends to complete the first oil change at 8000 miles, then every 8000 miles after that. (This is for the 5.7L.)
You are insane if you plan to drive a new vehicle on whatever the factory dumps in, for 8000 miles, metal shavings and all.


First the factory probably didnt use the best stuff out there for the factory fill although no one really knows or can say for sure what they are using. Second only a FULL SYNTHETIC should be run anywhere near 8K. And third, there is always an increased amount of metal chips and sealant pieces, etc that come from a new engine during breakin, you are taking a huge risk doing this especially on the factory fill of a new engine. I change at about 500-1000 with Mobil 1 and use full synthetic with Pure One filters in all my vehicles, never had a problem. Of course oil and filter are really just personal preference and there is no shortage of evidence (real or otherwise) that says this oil is better than that or this filter is better than that.

Oh, and most drivers dont drive anything like maintenance schedule "A" or regular driving. Most are "B" because just sitting and traffic or idling for a longer time requires more frequent maintaining.
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  #17  
Old 08-30-2010, 04:23 PM
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Re: "Break In" Period

My first change is coming at 3k, then im switching to synthetic (assuming factory doesnt use synthetic), from then on is it okay to change every 5k?
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Old 08-30-2010, 04:39 PM
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Re: "Break In" Period

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My first change is coming at 3k, then im switching to synthetic (assuming factory doesnt use synthetic), from then on is it okay to change every 5k?
Absolutely! Especially if you are not sitting in DC traffic for a couple hours each day! Personally I go about 4000 after the first change. I know know from experience that seems to work well on my past jeeps. But my driving habits (heavy traffic, occasional towing, etc) would definitely make me nervous going that long (or 8000) on conventional oil or a factory fill.

I dont really like walmart much and I certainly dont work for Mobil but they have 5 quart jugs of Mobil 1 on rollback for 21.00.
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Old 08-30-2010, 05:28 PM
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Re: "Break In" Period

In my manual, it said for the 1st 500 miles, go WOT for a short while I never heard that before and I had a hard time doing it since the only time I go WOT on a new engine is if I 1) test driving it and not going to buy the car that I'm driving 2) if I really need the power. I couldn't bring myself to treat my engine like that so I only did it when I needed to. I kept it like that until my 1st oil change that I do at 2000 miles. For cars that can only go 3000 miles before their next oil change, I would do it at 500 miles and once again at 1000 miles then again at 2000 miles.
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  #20  
Old 08-31-2010, 08:33 AM
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Re: "Break In" Period

I think their WOT is meant to just wind the engine, and not try to engage the kickdown "passing" gear. Of course, how much winding can you do when they suggest that you not exceed the speed limit???
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Old 08-31-2010, 08:58 AM
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Re: "Break In" Period

what is WOT?
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  #22  
Old 08-31-2010, 09:24 AM
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Re: "Break In" Period

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Originally Posted by madden0010 View Post
what is WOT?
Wide Open Throttle. In other words, flooring it. I wouldn't do it regularly to any engine, but every now and then one needs to let the engine unwind a bit. It will usually happen in the course of regular driving (passing, acceleration to merge); we aren't really talking drag racing type of going hammer down.
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Old 08-31-2010, 09:47 AM
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Re: "Break In" Period

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Originally Posted by Knightrider03m View Post
In my manual, it said for the 1st 500 miles, go WOT for a short while I never heard that before and I had a hard time doing it since the only time I go WOT on a new engine is if I 1) test driving it and not going to buy the car that I'm driving 2) if I really need the power. I couldn't bring myself to treat my engine like that so I only did it when I needed to. I kept it like that until my 1st oil change that I do at 2000 miles. For cars that can only go 3000 miles before their next oil change, I would do it at 500 miles and once again at 1000 miles then again at 2000 miles.
Absolutely. Goosing the throttle very occasionally has been part of the ideal break-in routine for decades. Think of it as a mild variation of an Italian tuneup for carbon-clogged combustion chambers.
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  #24  
Old 08-31-2010, 11:15 AM
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Re: "Break In" Period

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Originally Posted by Jim Hef View Post
I think their WOT is meant to just wind the engine, and not try to engage the kickdown "passing" gear. Of course, how much winding can you do when they suggest that you not exceed the speed limit???
I LOL when the book told me to do it within the speed limit myself hahaha
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