I heard with a new car there's a "break in" period where you shouldn't go past 4000rpms. Can some elborate on this? How long you shoud drive and what rpm you shouldn't pass? And why is this?

 

hm..... RTFM!

okay seriously though, there's so many theories about breaking in. but i just follow the one infiniti gave me, since they did build and engineer the car... first 1200 miles don't go over 4 k rpms, and don't stay at constant speeds for a long time

 

The cars still new! Manual reading will come this weekend...I hope. =P

Thanks for the info!

 

The underlying reason for this "break in process" is to properly break in/seat the piston rings as to prevent any excessive oil burning.

 

what happens if you do. I drove to Htown the 3rd day i had my car. so thats like 4 hours of 80mph and 60 everytime i hear my Radar. Then when i got there i had about 600 mph and i redline it to 8k hahaha

 

^^^^^ it's still running ritee??? Lol JK PIMP

 

Lots of debate on this, use the search function.

Some say yes, break-in, to seat the piston rings and all the other good stuff to get better performance out of the engine. Others (including some engine builders) say that only applies to older cars. With the way new cars are built with better technology, there's no need for break-in, your engines are broken in from the factory.
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yeah you have to let the piston rings break in and so forth different for different type of cars some people say 300miles

 

I recently purchased a G37S and the dealer told me that the car was broken in at the factory. About a month after having the car I ran into a guy that owned a G37 and used to be the manager of the dealership that I bought my car from. I asked a few questions because I was Leary of what I had been told.

One term that the dealership used was "Drive it like you stole it, and it will break in to your style of driving."

I told the guy that I ran into about this and he absolutely agreed. According to him the factory runs each car at max RPM for 15 minutes prior to rolling it off the assembly line. He stated that this max RPM break-in is done above the 7500 RPM redline.

Based on the information from him and the dealer...I have been driving the car like I stole it. I did not get the car over 100 until I had about 600 miles on it. Tonight I got the car to 135 with about 770 miles on the car.

I would like to hear other opinions on this topic. But I believe that the car is broken in at the factory. I own a classic car as well and the motor that I am having built will be broken in on the DYNO. Once the shop is finished with the DYNO they are telling me that the motor is fully broken in and ready to go. They also state that if the motor is going to fall apart it will do so on the DYNO.

 

I got told the same thing at the dealer I got my G37x sedan from. I took it out for a test drive and wanted to play a little but didn't want to exceed any "break-in" RPM limit. The salesman said, "Go right ahead, drive however you want--the engine's already been there, they performance test them at the factory."

However, the manual does say you should avoid full-throttle acceleration and not go over 4K RPM for the first 1200 miles. So it's a question of who you want to believe.

For me, if I had to wait until 1200 miles to have any fun with the car, I'd have to wait a long time--I don't put a lot of miles on my cars, for example I had the car I owned prior to my G for three years and it barely hit 25K miles. So...I may have exceeded the manual's recommendations, a time or two...LOL...

 

i haven read the manual after owning the car for almost a year now.. procastination ftw haha

 

I think all you guys that drive it like you stole it should post up your VIN so we know how to find those quality used cars one day. Or better yet, just put it in your ad when you sell it. "2008 Infiniti G37, didn't read the manual, drove it hard as hell from day 1 just like some salesman told me to, rare find.....all offers considered."

 

^^ Lol..

I was on the fence about this exact same subject. But bottom line is they wouldnt take the time to tell you to break it in in the manual if it wasnt necessary...my $.02

 

lol, I read the manual when I got home but I already floored it the minute I left the dealer (that's why I got the car in the first place). First few times driving it hard, I could smell the oil burning after I was done. Guess that's why I'm paying the premium to lease. BTW I know it's in the manual but if it was so important, they should put a sticker or something on the steering wheel or hang a sign on the rear view mirror for you to read when you first get the car (instead of one little sentence somewhere in the end of the manual, which the majority of the people don't read)

 

I followed it with occasionally over 4k for brief second. Doesn't hurt to follow it.