Break-In a New Car
 

Is it necessary to break-in a new car? Aren't the engines broken in at the factory before assembly?

If you do break-in, what's the proper way of doing it?

I've never broken in any of my new cars and I have never had a problem.

doing a break in when you buy any car is a good idea....doesnt hurt...lol


just stay under 3000 rpm and fluctuate the speed...do not drive at a constant speed all the time..

do this for 1500 Km or equivalent in miles

Don't forget the tires. Taking a turn to fast, could result in a big surprise!Tires are comprised of many layers of rubber, steel and fabric. Due to these different components, your new tires require a break-in period to ensure that they deliver their normal ride quality and maximum performance. As tires are cured, a release lubricant is applied to prevent them from sticking in their mold. Some of the lubricant stays on the surface of your tires, reducing traction until it is worn away. Five hundred miles of easy acceleration, cornering and braking will allow the mold release lubricant to wear off, allowing the other tire components to begin working together. It is also important to note that your old tires probably had very little tread depth remaining when you felt it was time to replace them. As any autocrosser or racer who has tread rubber shaved off of his tires will tell you, low tread depth tires respond quicker."Don't be surprised if your new tires are a little slower to respond (even if you use the exact same tire as before). Their new, full depth brings with it a little more tread squirm until they wear down.

Not required, but deffinitely reccommended!!!

^^^ why take the chance??...might as well just do it...it's only for 1500Km

I highly recommend every single new owners to break in the car properly. You've just paid 30K+ dollars for the car you've always wanted and you should break in the way highly knowledgeable engineers have suggested.

2009 Nissan 370Z Break in Instructions

http://www.the370z.com/images/370zfo...0in%20370z.PNG

I've heard two things. Break it in nice and slow as mentioned, but also break it in as your going to drive it in the future. Meaning you can go hard on it, the engine is not going to explode or anything. I wouldn't max it out, but I definitely wouldn't be afraid to have some fun.

Hey I have a Chevy Cobalt SS 1st gen and I broke it in hard and it has lots of miles now and runs like butter.

Break in period is overrated. I do believe it takes a little time until the brakes, clutch and tires are optimal, but I don't buy not revving past 4K.

Some actually advise on running the car hard to redline right away as it may yield more power and be healthier for the engine in the long run. Break In Secrets--How To Break In New Motorcycle and Car Engines For More Power

There is also some speculation, that break-in periods still exist to allow the new owner to get accustomed to the car which protects the car company legally.

there are soo many myths about this....... I guess it just comes down to preference..


looks like a case for the Mythbusters.....LOL

I've never exactly followed break-in instructions. I usually pass the rev limit early on and begin driving hard after a few hundred miles.

When compared to others with the same exact car, my car is typically a bit faster than theirs during roll-on runs. No myth in mind.

AGreed. Everyone I ask has a different input about this topic. Want to email Mythbusters about it, nogood? ;)

MAn I tried to do a break in on my new G I got to about 150 km then I was like aaaaaaaaaaa fcuk it. MAn my car is fast lol "7500 rpm what? no infiniti warrenty that was not me I follow the manual for my break in."

Email it to Top Gear instead. :tup:

I think I can guess what method Jeremy Clarkson will use... :icon17:

Damn. That's going to be a hard first 1.200 mls.