TaliaZ

What are the '04 changes for a touring automatic?

How should I break this thing in? I'v eheard dont floor it or drive over 60mph for the firsy 500 miles. Yeah?

Z'd

under 4000 rpm for 1200 miles. avoid rapid acceleration and constant speeds for prolonged periods (from the owner's manual).
You will find others with varying opinions on this advice.

TaliaZ

thanks!!!!

Hencho

iTrader: (1)

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

Anyone use something like this instead of listening to the manual ? some of the stuff i read makes too much sense, i know i shouldnt believe everything but just seems to me like the right way to do it.

what could be adverse affects of a break in with redlines and high pressure in the head ?

Pimp'n Z

I just recieved my 350Z and tried to keep the RPM's under 4000 but I have found that to be impossiable. I have limited myself to under 5,000. Should i be worried about anything going wrong are not lasting as long as it should?

dchengmd

What's wrong with just following what's recommended in the owner's manual?

ares

iTrader: (2)

thats the most cited webpage; and oddly the only one Ive ever seen like it.

I tend to beleive the engineers of the car over that guy. forget about the engine and breaking; I see more accidents from poor driving that start with "I didnt even get 1000miles on it". get used to the car and the power for a little while; it wont kill you; anticipation makes it even better.

The Brickyard Rat

iTrader: (1)

What Ares says!

BIGGY

No, the engineers are often wrong. I know for sure that you should break a motorcycle in that way, but the manufacturer suggests otherwise. Hell on my sportbike they suggest being in 6th gear by 45mph. I don't even think aboiut it till past 80. What they write in the manuals is not correct. It would be ok if you don't care about the performance of the car and never plan on any acceleration, but otherwise you must break it in somewhat close to how you plan to drive it. They say to do the slow, legal, and easy way. The way he suggests you'll prolly break the speed limit a few times on the highway. Notice that in the article it never says to floor it. The engineers are taking the safe way out. Sure if you baby it, you might not discover a problem that's there. Drive it like you plan to drive it.

Xeinth

I know that they break in most racecars like that. I know for a fact they do it on NASCAR.

X

cwerdna

Which method? If you are talking about running it hard... err... do people drive NASCAR cars for 100K miles and expect them to last say 8-12 years? Nope.

I'd follow what the manual says.

julian

you can still put varying amounts of load on the engine but not exceed 4000 rpm, which satisfies both the manual's and mototune's recommendations.

BIGGY

Of all my cars and motorcycle, they have been broken in hard. Two of the 4 cars had problems. At 90k miles the Firebird started having transmission problems. And at 160k the Integra's transmission started going as well. As for motocycles there have been no problems. It's how I and everyone in my immediate family breaks in their cars. Not a single problem as a result of this method. Tell me, how would you plan to suddenly floor it up to 6500rpm if the most the cars been to is 4k? Answer is that you'll have a tighter and weaker engine. I'm not saying to gun it off the line, but you've got to warm up the engine and take it gradually through all the rpm's.

Not to mention...as if car manufacturers have not made mistakes both in documentation and manufacturing cars? No cars with problems of blowing up or rollovers? Powerful engineering at work there?

Xeinth

Besides, there is only one reason the manual has the incorrect break in method: Because they cant tell you to do it the right way!

Do you think the manufactors lawyers would allow a statement that says be sure to drive the **** out of your car and floor it a few times in the first few hundred miles you get it? They would be getting sued from everyone who wrecked 'breaking in' their cars.

From an engineering perspective, its almost funny to think that the parts need to be worn in. I think its funny that there are people out there who follow the break in to a T, but always drive their cars without letting them completely warm up. That will cause FAR more damage than running hard during the first N miles.

X

Pimp'n Z

ok so i guess the answer is still out there! I have been doing alittle bit of both. I have taken the car to about 5600 rpm then driving it normal. I then you need to drive it hard some of the time just so when you have reached 2500 or whatever the milage is you dont shock the hell out of the motor. oh well