According to the manual, no full-throttle starts, don't go over 4k RPMs, and don't slam the brakes until you hit 1200 miles. You did get a manual with your car, right? [img]/w3timages/icons/smile.gif[/img]

My sedan went over the 5k mark a few times too.. it jumps up there pretty quick when you're trying to get around someone in traffic. Don't race it, redline it, or otherwise be mean to it until 1200 and you'll be fine.

I wouldn't worry too much about going as high as 5k RPM, but you should definately let the engine get into normal operating temps before letting it get up there.. that goes for after the break-in period, too. Not hard to do, since it only takes a couple of minutes for that needle to wake up and climb over the "C".

On the flip side, I've heard (and I do stress that this is rumor) that breaking in an engine at higher RPMs causes it to be a bit more powerful than the same engine broken in at low RPMs. I wasn't willing to perform a $35k experiment to find out, though.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter

 

To each his own. If history is any guide, it'll be 6 or 7 years before I trade-in my G35.

2003.5 G35 Sedan Desert Platinum/Graphite Premium/Sport/Aero/Nav/Winter

 

I did the same thing to my 97 civic. Raced it the first night I had it. It was a DX and had no tac so I had no idea what RPM I was at. I would constantly downshift and hit the limiter. I just sold the car with custome dual exhaust, intake, fuel pressure controller, centerforce clutch, all that junk and it was still running smooth at 95k.

that was a honda though, a 11k dollar car that I didn't care what happened to the engine.

I don't know if you can compare a honda engine to a nissan engine either.

Just drive your G the way you want and just try to be nice to her the first 1400. Or you can just race her like crazy and if anything goes wrong, you can have it covered under the warranty

BS G35C 6spd navi/aero/prem

 

1200 miles is a long time for a new car like this. If the manual asks this, I would stick to it though. FYI.. The break in period on my Z06 is 500 miles and they said not to use the brakes hard for 200 miles.

One other thing I'd like to add about break-in is that you should vary your speeds when you're driving on the highway. This has always been a rule for break-in on any engine.

Sal

 

well said zaid

 

Don't worry about the break in period too much. It is good to rev it up a bit in the first few hundred miles, but not at full throttle. Do a search here and you'll find lots of posts on this. One of them contains an excellent link to a well-developed break-in technique. But overall, it's not as big of a deal as people make. But, to each his own, it is YOUR car.

Andrew

2003 coupe 6MT blue premium aero (on order)

 

I remember back in collage (10 years ago) going to visit Chrysler’s Jefferson plant where they make the Grand Cherokees. We where at the end of the production line and I was amazed at how hard they drove them once they got out of the building. Do you really think that the young kids that they have taking them off the line in Japan baby them?

(I say young kids because they have to run back the line constantly)

 

hahahaha agreed Fastback.
I know this for a fact at some Ford places.
Anyway...they usually test them on a small track outside the production plant to make sure they dont hear any suspicious noises, 7 out of 10 Focuses fail this test....just thought to let you guys know [img]/w3timages/icons/smile.gif[/img]

<font color=blue>-Rambo</font color=blue>
All your base are belong to us!

 

Very true. My roomate got a little pamphlet from Japan after he bought his Type R. Told them exactly how they spent more time with the engine and how it differed from the regular integra. Also showed the test track they put 5 miles on the car of suuuuper hard driving to make sure it's holding up.

Andrew

2003 coupe 6MT blue premium aero (on order)

 

maybe for the 1st hundred or two miles i'd go light, but after that i'd start opening it up more and more- 1200 miles really makes no sense......i mean, if i floor it at 1000 miles, do u really think it's any different that 1200.

www.ironpumping.com
^^Bodybuilding Made Simple

 

Not one bit.

Andrew

2003 coupe 6MT blue premium aero (on order)

 

I used to work for a software company selling warehouse and maufacturing software. Some of my clients were the large car manufacturers. I went on a trip to the Subaru/Isuzu plant in Lafayette IN. At the engine production/testing area they would hook up engines to cooling, electrical, fuel and exhaust system for initial break in and testing. They ran the engines hard, and they had a concrete barrier around each test station in case of engine failure (sometimes resulting in a violent end).

Not to say that you should be redlining the engine once you leave the dealership, but remember that the engines in the car are not exactly right off the engine production line. They have had many hours of testing prior to assembly into vehicles.

Mike.


"I am currently out of my mind, so please leave a message after the beep......beeeeeeep!"