For me of course its too late being that my cobalt has 23000 miles on it.

But i didnt know about "breaking in" a car, they never told me so i drove it like any other car.

Infact i probably drove it harder because it was my first brand new car and it looked all sportsy.

I have had no problems with my car, some people say redlining your car before break in is bad, but if it is it hasnt affected my car at all.

just want some info on this.

 

I was easy on my car until 2000 miles and I changed the oil every chance I got until about a month ago. You'll start to notice things above 100,000 miles, maybe sooner.

 

i dont know if my car will reach 100,000 miles. Im gonna get a g 35!

 

For what? They're slow. Be a real man and get an Evo

 

The only things you'll notice close to 100k is no oil consumption to speak of and alot of the power will still be there from the day you bought it.

There's nothing wrong with driving a car hard during the break-in period. It just helps to seat the rings by increasing combustion chamber pressures. Redlining it isn't the best idea but won't hurt anything.

 

The brake in for your cars is more about not holding the same speed. All you needed to do just not keep it at one speed so you do not put ridges in the cylinder walls. As for hitting the reading a lot it would not hurt anything too bad. You are just wearing all of the parts a little faster. When I say little I mean vary vary little. From what I have heard new engines have this new brake in procedure. Older engines had a different procedure were you had to change the oil a lot and be really really easy. Our engines were effectively brock in at the manufacturing plant.

The things that weir on any engine are the bearings of course and the cylinder rings. The bearings and cam lobes cause slop in the hole rotation assy. The springiness of the rings in one of the components that car really cause power loss. The less springiness you have on the rings the less compressing you will get. Also you will start burning more oil.

Not changing your oil enough can also have adverse affects on the engine. Slug in a bad thing to have.

Bad gas in another big no no. deposits on the valves and injectors can really make you lose power.

So if you change your oil when it says to, use only good gas, and keep the reves down most of the time then your engine can last a vary long time and go a lot of miles. There are other factors but these are the most prevalent. This is true for any car.

 

Thanks for the Info guys! As for the Evo comment by vamp, i love the way g 35's look, sometimes its not all about speed!
EVo's do look bad ass though, very bad ass.

 

what kind of rims would look good on a silver cobalt ls

 

LOL, Where the hell did that comment come from?? ^^^

 

LOL IDK thats funny. As for the break in I say just drive it nice and strong and keep it uner 5000 but hit 5000 once in a while to seal the engine real good. Im sure if you do a search you will find alot more info.

 

Maybe this link will make you feel better.

http://www.mototuneusa.com/break_in_secrets.htm

According to this guy:
What's The Best Way To Break-In A New Engine ??
The Short Answer: Run it Hard !

 

Interesting read. Still skeptical on it, but that's because any jack ass can make a website an write an article. If I had the money I would test it out, but unfortunatly I don't.

 

I'm skeptical as well but I think it's something I'd be willing to try with a new car IF I was going to rebuild the engine and resleve or enlarge the bore sometime down the road (not far future but not immediate either). Before the work is done, you'd be able to check how it has worn.

 

Modern motors come 90% broken in from the factory to begin with. However, they still need to be finished up by the user. High revs here and there won't hurt during the break-in process, it will actually help. The biggest problem with breaking in a new motor is heat. If you let the engine sit at say, 3500 rpm on the highway for 20 miles then you can cause micro-wielding of the pistons rings. The main thing is to vary the engine's rpms and keep it away from excessive heat.

Also, the new process of breaking in a new motor at the factory is to let it run at full operating temp for 24 hours, then they flush the hot coolant out and start it right back up using ice-cold coolant and run it some more.