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^I partially agree with what youre saying. But the problem with that is the manufacturer already puts a certain amount of miles before it even gets delivered to you. Also add to that the amount of miles thats added when its delivered and you almost 100% have missed the period when you can do a hard break in. So I always do a soft break in.
 

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Most of the folks advocating "hard break in" don't acknowledge that different cylinder materials have different break-in requirements. What may work for cast iron cylinders isn't best for other materials such as steel, or nikasil-lined aluminum. Follow the manufacturers' recommendation.
 

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I didn't go over 75mph during the first thousand miles. I hovered mostly around 60-65mph when I took it on a 1,050-mile road trip with my iQ having only about 400 miles on the clock. It was nice because I drove along the California coast on Hwy 1 -- a very mellow cruise! That's how I broke it in. Easy. Whether it was the right way or not, it was a way I was more comfortable with and none of my cars or motorbikes in the past have failed me with that practice.
 

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Everyone has their own opinion on how to break it in. But the most important thing is that you don't actually break it when you do the break in. So whether you decide to do a hard of soft break-in just don't push it past what its supposed to handle.
 

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I've been 90 for brief period second week I had car just to see if I could get there. I hadn't cracked the owners manual yet has anyone seen any blurb from manufacturer about how many thousand miles to baby car?
1,000 miles. That's the part everyone agrees on, how you break it in, that's the part where everyone has different opinions.
 

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and surfcity local,would you think your iq is fairly heavier than the stock iq,i wonder how much if at all it would be with your airunner suspension and bigger tires and rims,my uneducated guess may be around 40 lbs,and you still hit 100mph.
 

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and surfcity local,would you think your iq is fairly heavier than the stock iq,i wonder how much if at all it would be with your airunner suspension and bigger tires and rims,my uneducated guess may be around 40 lbs,and you still hit 100mph.
I would think it's actually close to the stock weight. I have lighter wheels and tires than the stock ones and the rear seat has been removed. Should be pretty close to stock weight.
 

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got it,i thought maybe the rims would be a wee heavier just cuz there size,not that it matters of course,we didnt get these cars for there powere to weight ratio...:p
 

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Proper break-in, Car or Motorcycle, is first 100 miles take it easy but vary the engine speed, After that, to drive up to 1/2 throttle while driving for first 500miles.

Worst thing on any New engine is to drive at a constant speed/Engine RPM, for a extended period. Engine speed needs to be constantly changing, from accelerating to decelerating.

Meaning drive while accelerating for a while then let it decelerate for a while, then back and fourth.

The engine needs to be put under a Load, NOT a Hugh Load, But, Decelerating is just as important as accelerating, this is the load, for proper break-in. A varied load through acceleration and deceleration, is what is needed. Varied Engine speed, Not a constant speed, until it is proper broken-in, Then plan a big trip.

After 500 mile's you can go to a little under 3/4 throttle, but still vary the engine RPM, till at least 1000-miles
 
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